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【单选题】
一个反应的活化能是 33 kJ · mol -1 , 当 T = 300 K 时,温度每增加 1K ,反应速率常数增加的百分数约是:A.
4.5%
B.
90%
C.
11%
D.
50%
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【简答题】核外电子运动状态的哪些方面决定了电子具有的能量?核外电子运动状态的哪些方面决定了电子所处的轨道?
【多选题】历史和现实告诉我们,社会主义只能在斗争中曲折地发展。列宁指出:“设想世界历史会一帆风顺、按部就班地向前发展,不会有时出现大幅度的跃退,那是不辨证的,不科学,在理论上是不正确的。”对社会主义的曲折发展具有决定性的影响因素有( )
A.
人们对社会主义的本质和发展规律的认识有一个过程,相应地实践水平的提高也要一个过程
B.
经济全球化为社会主义的发展既带来难得的机遇又带来严峻的挑战
C.
社会主义作为新生事物,其成长不会一帆风顺
D.
现实社会主义的发展起点普遍落后与发达资本主义国家,具有后发现代化的比较优势
【判断题】If the company finds that a competitor has discovered a new segment, this might be an opportunity.
A.
正确
B.
错误
【单选题】（ ）WhyDoes the writer say“at the risk of inflation”?
A.
Because he feels that he mightBe exaggerating
B.
Because he has recently praised more works than usual
C.
Because lie finds it hard toBe objective
D.
Because he feels he may not praise the work sufficiently
【单选题】A leading software company merged with its competitor to form a new company. Which of the following is likely to be the result of this merger?
A.
Decreased cost per unit output
B.
Decreased bargaining power over suppliers and customers
C.
Increased industry rivalry
D.
Decreased profitability
E.
Decreased product differentiation
【单选题】Why does the writer say 'at the risk of inflation'?
A.
Because he feels that he might be exaggerating
B.
Because he has recently praised more works than usual
C.
Because he finds it hard to be objective
D.
Because he feels he may not praise the work sufficiently
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