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【单选题】
升高温度可加快反应速率的主要原因是 ( ).A.
降低了反应的活化能
B.
增加了分子的碰撞次数
C.
提高了活化分子百分数
D.
使平衡发生移动
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【单选题】— I'm interested in that beautiful bag. What do you charge for it? — $ 115. — _____, but I can't afford it. [ ]
A.
It's worth that
B.
It's really nice
C.
Please lower the price
D.
That's too dear
【单选题】What are some of the problems that Chromium Ⅵ can cause?
A.
Cancer.
B.
Asthma.
C.
Tumors.
D.
All of the above.
【单选题】Though our city has a good public transport system, _____ private car is becoming _____ popular
A.
153. Though our city has a good public transport system, _____ private car is becoming _____ popular means of transport. A．a; /
B.
the; the
C.
the; a
D.
/; the
【单选题】The Novartis Research Institute for Tropical Diseases is a not-for-profit organization that focuses on the discovery of new drugs for the treatment of neglected diseases, such as tuberculosis. Besides...
A.
a. mandated by local court rulings
B.
b. socially responsible
C.
c. unrelated to any ethical motivation
D.
d. environmental marketing
【简答题】博客
【简答题】Bayer, Johnson & Johnson, Novartis________________.
【单选题】---What can I do for you? ---I want t o buy some _____clothes.
A.
man
B.
new
C.
men’s
D.
men
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