题目内容

s原子轨道和p原子轨道只能形成σ键。（）

A. 对
B. 错

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He told me that by the end of this month ______ in this company for 10 years.

A. will have been working
B. would have been working
C. will work
D. would work

目前海船上普遍使用的锚是________。

A.海军锚
B.马氏锚
C.霍尔锚
D.丹福锚

远洋船上不再使用的锚是________。

A.有杆锚
B.无杆锚
C.大抓力锚
D.AC-4型锚

霍尔锚的抓力系数一般取________。

A.2~4
B.3~5
C.4~6
D.3~4