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【简答题】
Write an essay of 160 ~ 200 words based on the following drawings. In your essay, you should:1) describe the pictures briefly,2) make both positive and negative comments, and then3) give your comments.You should write neatly on ANSWER SHEET 2. (20 points)
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Excitement, fatigue, and anxiety can all be detected from someone’s blinks, according to psychologist John Stern 1 Washington University in St. Louis. Stern specialized in the study on these tiny t...
A.
over
B.
up
C.
off
D.
in
【单选题】设函数f(x)与g(x)在(a，b)上可导，考虑下列叙述： (1)若f(x)＞g(x)，则f"(x)＞g"(x) (2)若f"(x)>g"(x)则f(x)＞g(x) 则
A.
(1)、(2)都正确．
B.
(1)、(2)都不正确．
C.
(1)正确，但(2)不正确．
D.
(2)正确，但(1)不正确．
【单选题】Scientists around the world are racing to learn how to rapidly diagnose, treat and stop the spread of a new, deadly disease. SARS — Severe Acute Respiratory Syndrome — was【C1】______for the first time ...
A.
lately
B.
newborn
C.
newly
D.
renewed
【单选题】设连续函数F(x)=g(x)φ(x)，x=a是φ(x)的跳跃间断点，g"(a)存在，则g(a)=0，g"(a)=0是F(x)在x=a处可导的
A.
充分必要条件．
B.
充分非必要条件．
C.
必要非充分条件．
D.
非充分非必要条件．