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【多选题】
塔式起重机的配备、安装和使用应符合以下要求（）.A.
应根据起重机的技术要求，对地基基础和工程结构进行承载力、稳定性和变形进行验算
B.
当塔式起重机布置在基坑槽边时，应满足基坑支护安全的要求
C.
采用多台塔式起重机时，应有防碰撞措施
D.
作业前，索具、机具进行检查，每次使用后应按规定对各设施进行维修和保养
E.
当风速大于四级时，塔式起重机不得进行顶升、接拆除作业
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【简答题】称为“先天之本”的是
【单选题】Part II Read and Reason In Part II, you will read short texts on different subjects. Read the instructions carefully and answer the questions based on logical inference and reasoning. (Time suggested:...
A.
You said that I would have to run the mile in less than six minutes to be on the track team, and I did. So why did I get cut from the team?
B.
Dina has to be rich or at least to be an heiress. She after all belongs to the Alpha Phi Lambda sorority which is the richest sorority on campus.
C.
It’s supposed to be in the low twenties tonight, so surely we’re not going to the football game, are we?
D.
To see viruses, one must have a microscope. This follows if William Carroll said he saw viruses, he must have used a microscope.
【简答题】Although he is rich and famous, he lives in a ____ house in thevillage. A) limited B) modest C) slight D) reserved 12. Some fish have a greater ____ for acid water t...
【单选题】已知风险组合的期望报酬率和标准差分别为10%和12%，无风险报酬率为5%，某投资者除自有资金外，还借入40%的资金，将所有的资金用于购买市场组合，则总期望报酬率和总标准差分别为()
A.
12%和16.8%
B.
14.8%和16.8%
C.
12%和14.8%
D.
14%和12%
【简答题】You may like the fat, happy man who brings (11) to kids on Christmas Eve. But do you know why he's called Santa Claus and why he is dressed in red? The history of Santa Claus begins in the 4th (12) wi...
【单选题】已知风险组合的期望报酬率和标准差分别为 5% 和 2% ,无风险报酬率为 1% ,某投资者除自有资金外,还借入占有资金 20% 的资金,并将所有的资金投资于市场组合,则总期望报酬率和总标准差分别是( )。
A.
5.8% 和 2.4%
B.
3.6% 和 6%
C.
5.8% 和 6%
D.
3.6% 和 2.4%
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