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【判断题】
过渡态理论认为,生成过渡态络合物是反应的速控步。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】Mr. Evans lived in a city. He was a bus driver in a company three years ago. He drove well and the people in the company all liked him. But a terrible accident changed（改变）his life. One spring he drove...
【简答题】阅读理解。 Mr. Evans lived in a city. He was a bus driver in a company three years ago. He drove well and the people in the company all liked him. But a terrible accident changed (改变) his life. One spring ...
【单选题】What is NOT indicated about Mr. Parker?
A.
He will contact Ms. Evans later.
B.
He has a local business.
C.
He called Ms. Evans in the morning.
D.
He sells computer products.
【简答题】阅读理解。 Dividing Up the Work Mr Evans and I work in the same office. He's the oldest of all. So he's told to manage (管理) us. He's strict with us all and makes us listen to him. We know he's kind and oft...
【多选题】下列关于牛腿柱内力组合注意事项正确的是（ ）。
A.
风荷载及吊车横向水平荷载，向左、右不同时存在 ，故只能选一种参与组合
B.
求 N min 时， N = 0的风荷载应参加组合
C.
规范对多台吊车参加组合时，考虑到同时满载的可能性较小，因此对吊车荷载乘以折减系数。
D.
D max 作用在 A 柱， 和 D max作用在 B 柱不可能同时出现，所以不可能在同一组组合中出现
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