【判断题】

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COPD 致呼吸衰竭
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1~3min
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2~4min
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3~5min
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4~6min
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5~7min

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V3R 导联位于（）
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0.9%NaCl
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5%葡萄糖溶液
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0.5%氯化钾溶液
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10%葡萄糖溶液

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3500g
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3800g
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4OOOg
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4200g
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4500g

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1OOOg
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1500g
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2OOOg
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2500g
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3OOOg

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＜30s
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＜25s
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＜10s

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Schiötz 眼压计的砝码不包括（）
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5.5g
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7.5g
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10g
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12.5g
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15g

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10,8~10
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12,8~10
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14,6~8
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16,3~4
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20,1~2

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Valsalva 动作是（）
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“HM/30cm”表示（）
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30cm 处的近视力
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“8”字缝合

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L 形电凝钩最为常用
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【单选题】After inserting a node into an AVL tree and rebalancing, the height of the rotated sub-treeAVL树中插入节点引发失衡，经旋转调整重新平衡后发生旋转的子树的高度
A.
decrease by 1 减小1
B.
remains the same or increase by 1不变或增加1
C.
remains the same 不变
D.
remains the same or decrease by 1 不变或减小1
【单选题】（ ）事件标志着第二次世界大战全面开始。
A.
1937年日本发动全面侵华战争
B.
1931年日军侵占中国东北
C.
1939年德国入侵波兰
D.
1935年意大利军队入侵埃塞俄比亚
【单选题】所谓审美就是（ ）与（ ）之间建立起一种适应性的联系。美学就是关于审美关系的科学，而不是关于美的科学。
A.

B.

C.

D.

【单选题】Which one in the following is not the suggestion on writing academic paper?
A.
Avoid formal vocabulary
B.
Avoid colloquial vocabulary
C.
Avoid words that you would use with your friends and your family
D.
Try to find specific vocabulary of your own field that you are researching on
【单选题】What about the case when a node is deleted? 删除节点的情况呢？
A.
decreaes by 1 减小1
B.
remains the same or increase by 1 不变或增加1
C.
remains the same 不变
D.
remains the same or decrease by 1 不变或减小1
【单选题】Where will Zachary go to teach?
A.
Guangxi.
B.
Hangzhou.
C.
Yunnan.
【单选题】Stress levels and heart disease are strongly ________.
A.
coordinated
B.
correlated
C.
collaborated
D.
cooperated
【单选题】函数$\ln (\cos x)$的定义域是
A.
$(2k\pi -\frac{\pi}{2},2k\pi +\frac{\pi}{2}), k \in \mathbb{Z}$
B.
$(2k \pi - \pi,2k\pi +{\pi}), k \in \mathbb{Z}$
C.
$(k\pi -\frac{\pi}{2},k\pi +{\pi}), k \in \mathbb{Z}$
D.
$(k\pi +{\pi},k\pi +\pi), k \in \mathbb{Z}$
【单选题】、若$a,b$都是从区间$[0,4]$中随机选取的数， 求$f(1)>0$的概率
A.
$\frac{7}{32}$
B.
$\frac{1}{4}$
C.
$\frac{9}{32}$
D.
$\frac{5}{16}$
【单选题】下面结论正确的是
A.

B.

C.

D.

【单选题】、组成$a$的三个数字恰好有两个数字相等的概率为？
A.
$\frac{3}{5}$
B.
$\frac{11}{20}$
C.
$\frac{9}{50}$
D.
$\frac{27}{100}$
【单选题】、$A,B,C$至少两个发生
A.
${(ABC)}\cup{(\bar{A}BC)}\cup{(A\bar{B}C)}\cup{(AB\bar{C})}$
B.
${(\bar{A}BC)}\cup{(A\bar{B}C)}\cup{(AB\bar{C})}$
C.
${A}\cup{B}\cup{C}$
D.
${(\bar{A}\bar{B}\bar{C})}\cup{(\bar{A}B\bar{C})}\cup{(\bar{A}\bar{B}C)}\cup{(A\bar{B}\bar{C})}$
【单选题】下面的函数相同的是
A.
$y= \ln ((x+2)(x-2))$ 和 $y=\ln (x+2) + \ln(x-2)$
B.
$y=\frac{x^2-4}{x-2}$ 和 $y=x+2$
C.
$y=x^{\frac{1}{3}} \sqrt[3]{x-2}$ 和 $y=\sqrt[3]{x^2-2x}$
D.
$y= 2^{(2^x)}$ 和 $y= (2^2)^x$
【单选题】下面函数是$1-1$映射的是
A.
$y=x^2+2x$
B.
$y=e^{-x+3}$
C.
$y=2+\cos x$
D.
$y=|5x+3|$
【单选题】$\sin 15^{\circ}=$
A.
$\frac{\sqrt{3}-1}{2 \sqrt{2}}$
B.
$\frac{\sqrt{3}+1}{2 \sqrt{2}}$
C.
$\frac{\sqrt{3}}{\sqrt{2}}$
D.
$\frac{\sqrt{3}}{2 }$
【单选题】设$f(x)=x^2$,$g(x)=2^x$, 那么 $f \circ f \circ g=$
A.
$2^{x^4}$
B.
$2^{4x}$
C.
$x^{2^{2x}}$
D.
$x^{2^{x^2}}$
【多选题】球员为何愿意被归化入籍？
A.

B.

C.

D.

【单选题】$y=\log_x 2$的反函数为
A.
$y=2^{1/x},x >0$
B.
$y=2^{x},x >0$
C.
$y=2^{1/x}, x \neq 0$
D.
$y=2^{1/x},x >0, x \neq 1$
【单选题】函数$y=|-2^{-x}+1|$是由函数$2^x$通过下面哪种方式的得到的
A.

B.

C.

D.

【单选题】函数$f(x)=\frac{e^x-e^{-x}}{2}$的反函数是
A.
$y=\ln(x+\sqrt{x^2+1}), x\in \mathbb{R}$
B.
$y=\ln(x+\sqrt{x^2+1}), x>0$
C.
$y=\ln(x-\sqrt{x^2+1}), x\in \mathbb{R}$
D.
$y=\ln(x-\sqrt{x^2+1}), x>0$
【单选题】方程$\cos(2x)=0.5$的解集为
A.
$k \pi + \frac{\pi}{3},k\in \mathbb{Z}$
B.
$k \pi + \frac{\pi}{6},k\in \mathbb{Z}$
C.
$3k \pi + \frac{\pi}{3},k\in \mathbb{Z}$
D.
$2k \pi + \frac{\pi}{3},k\in \mathbb{Z}$
【单选题】In the Skills Power Station, Jason, Yuan Shu and Yinan talked about _______.
A.
making predictions
B.
making comparisons
C.
making suggestions
D.
giving directions
【单选题】In _____, nodding your head up and down means “yes”, while in some parts in ______, this motion can mean “no.” But in ______, nodding your head is a polite way to say “I heard you.”
A.
the United States; southeast Asia and China; Greece and Turkey;
B.
Greece and Turkey; southeast Asia and China; the United States;
C.
the United States; Greece and Turkey; southeast Asia and China
D.
Greece and Turkey; the United States; southeast Asia and China
【单选题】$\arctan (-\sqrt{3})=$
A.
$-\frac{\pi}{3}$
B.
$\frac{\pi}{6}$
C.
$\frac{\pi}{3}$
D.
$-\frac{\pi}{6}$
【单选题】下面方程的图像是函数的是
A.
$x^2+y^2=1$
B.
$x^4+y^4=1$
C.
$\sin (xy)=\frac{1}{2}$
D.
$|x+1|+|y-1|=0$
【单选题】、至多订一种报纸的
A.
17%
B.
63%
C.
83%
D.
37%
【单选题】$\lim_{x\to 0} \, \frac{\sqrt{x+3}-\sqrt{3}}{x}$
A.
$\frac{1}{2 \sqrt{3}}$
B.
$\frac{1}{ \sqrt{3}}$
C.
${2 \sqrt{3}}$
D.
${\sqrt{3}}$
【多选题】人类婚姻的发展类型:经历了乱伦婚以及:()
A.

B.

C.
.一夫一妻制;
D.

【单选题】In the Student Research Project, in which Alex, Abbas, Jiehan and Huanrui had a deeper discussion on the topic of _______.
A.
intelligence across cultures
B.
pop culture in the Arab world
C.
D.
getting along verbally and non-verbally
【单选题】Choose the most appropriate answer by completing the sentences below or answering the questions.1. Which of the following statement is NOT true?
A.
Alex prefers to stay indoors, because he feels discomfort.
B.
Alex prefers to stay indoors, because he wants to read novels.
C.
His eyes hurt, because it is heavily polluted in Beijing.
D.
Alex has a sore throat.
【单选题】下面结论正确的是
A.
$\lim_{x \to a} f(x)$不存在,则该点$f(x)$没有定义
B.

C.

D.

【单选题】$\lim_{x\to 1^+} \, \tan ^{-1}\left(\frac{1}{1-x}\right)$
A.
${\pi}$
B.
$\frac{\pi}{2}$
C.
$-\frac{\pi}{2}$
D.
$-{\pi}$
【单选题】People with different educational experiences may develop different ______.
A.
language proficiency
B.
characteristics
C.
personalities and abilities
D.
friendship
【单选题】Researchers used technologies such as MRI to study _____ and _____ of human brain for boys and girls at different stages.
A.
the structure; function
B.
the composition; role
C.
the structure; size
D.
the chemistry; volume
【单选题】Choose the most appropriate answer by completing the sentences below or answering the questions.1. Boys and girls are different in developmental process. Which of the following statement is true?
A.
The psychological development of boys is faster than that of girls.
B.
The brain development of girls is faster than that of boys.
C.
The physical development of girls is faster than that of boys.
D.
The mental development of boys is faster than that of girls.
【单选题】Which operation is executed for each accessed node in a splay tree?伸展树每次访问过某节点后都会把该节点：
A.
removing it 删除
B.
moving it to the higer level 上移一层
C.
moving it to the root 移动到根节点
D.
accessing it again 再次访问该节点
【单选题】Where do they often exercise?
A.
In the school playground.
B.
In the gymnasium.
C.
Go to the local sport center.
D.
In a fitness club with personal training services
【单选题】下列说法错误的是:()
A.

B.

C.

D.

【单选题】关于枚举定义说法正确的是：
A.

B.

C.

D.

【单选题】$\lim_{x\to 0} \, \frac{2 x+3}{x+1}$
A.
2
B.
3
C.
$\frac{1}{2}$
D.
$\frac{1}{3}$
【单选题】双层伸展策略优于逐层伸展策略的关键在于（）
A.
zig-zig/zag-zag
B.
zig-zag/zag-zig
C.
zig-zig/zig-zag
D.

【单选题】A splay tree degenerates into a list. What's its height after accessing the lowest node?在一棵退化成单链的伸展树中访问其最深的节点，经过伸展后树高大约为原先的：
A.
one third of the original height 三分之一
B.
half of the original height 一半
C.
the original height 不变
D.
twice the original height 两倍