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【单选题】
科技进步日新月异，人类正享受着科技进步带来的成果，我们也为科技的神奇而赞叹。因为（） ①每一次科学的重大发现和技术的重大发明及其应用，对人类社会经济和文化的发展都产生了间接影响 ②科学发现为技术发明和应用源源不断地提供新知识、新方法 ③科技进步和创新是生产力发展的强大动力，也是文化发展的重要因素 ④科技进步涵养着人们的科学精神和道德情操A.
①②③
B.
①②④
C.
②③④
D.
①②③④
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【简答题】在冬天严寒天气下，水管中的水会因受冻而结冰。根据低温下水管和冰所受应力情况可知______。 (A)冰先破裂而水管完好 (B)水管先破裂而冰完好 (C)冰与水管同时破裂 (D)不一定何者先破裂
【单选题】在冬天严寒天气下,水管中的水会因受冻而结冰,根据低温下水管和冰所受应力情况可知 。
A.
冰先破裂而水管完好
B.
水管先破裂而冰完好
C.
冰与水管同时破裂
D.
不一定何者先破裂
【单选题】With adequate training older workers may outperform. young workers in reliability and consistency.
A.
Y
B.
N
C.
NG
【单选题】The older view is that the laws of Nature are absolute, though they may have been inaccurately ______.
A.
overestimated
B.
accessed
C.
calculated
D.
formulated
【单选题】Many students in our class are ______ of the dark, but I am _____ in it.
A.
terrified ; interested
B.
interested; terrified
C.
terrifying; interesting
D.
interesting; terrifying
【单选题】I am ashamed, sir, that I wasted the many hours __________ I should have studied in class.
A.
while
B.
before
C.
which
D.
when
【单选题】As to the unemployment, the government has taken a series of measures in many areas, _______ I am sure, will benefit the people out of work.
A.
which
B.
that
C.
what
D.
where
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