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【判断题】
航母是航母编队的核心,是舰载机联队的远洋战略投送平台。舰载机联队可执行防空、反舰、反潜、袭岸、护航、攻击内陆要塞等多项使命任务。
A.
正确
B.
错误
参考答案:
参考解析:
.
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相关题目:
【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】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】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】下面结论正确的是
A.
偶函数和偶函数的乘积是奇函数
B.
奇函数和奇函数的乘积是偶函数
C.
周期函数和非周期函数的复合一定是周期函数
D.
递减函数和递减函数的乘积一定是递增函数
【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.
$\frac{\sqrt{3}}{2 }$
【多选题】球员为何愿意被归化入籍?
A.
了解、热爱、认同中国
B.
高收入、高回报
C.
精神上的自我实现
D.
提升社会阶层
【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.
先关于$y$轴对称变换,然后关于$x$轴对称变换,再向$y$轴负方向平移一个单位,最后将$x\lt1$的部分对$x$轴做对称变换得到的
B.
先关于$y$轴对称变换,然后关于$x$轴对称变换,再向$y$轴正方向平移一个单位,最后将$x\lt-1$的部分对$x$轴做对称变换得到的
C.
先关于$y$轴对称变换,然后关于$x$轴对称变换,再向$y$轴负方向平移一个单位,最后将$x\lt0$的部分对$x$轴做对称变换得到的
D.
先关于$y$轴对称变换,然后关于$x$轴对称变换,再向$y$轴正方向平移一个单位,最后将$x\lt0$的部分对$x$轴做对称变换得到的
【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】$\lim_{x\to 0} \, \frac{\sqrt{x+3}-\sqrt{3}}{x}$
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.
伙伴婚
B.
对偶婚;
C.
.一夫一妻制;
D.
同性婚姻。
【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.
academic writing skills
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.
如果$f(x)$连续且$f(a)=0$,那么$x \to a$时,$\frac{1}{|f(x)|} \to +\infty$.
C.
极限存在不一定唯一
D.
数列的子列收敛则数列一定收敛
【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】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.
生命教育就是以生命为核心,以教育为手段,倡导认识生命、珍惜生命、尊重生命、爱护生命、享受生命、超越生命的一种提升生命质量、获得生命价值的教育活动;
B.
生命教育,就是在生命活动中,通过生命活动和为了生命而进行的教育;
C.
生命活动不是实践活动;
D.
生命教育是为了生命而进行的教育。
【单选题】关于枚举定义说法正确的是:
A.
定义枚举的关键字是:class
B.
枚举中只能有常量
C.
枚举是一种特殊的类,因为它的对象的个数是有限的
D.
枚举中不能定义抽象方法
【单选题】“Nevertheless” is a useful word, which means _______.
A.
never
B.
hardly ever
C.
despite what has just been said or referred to
D.
seldom
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