题目内容

Creativity is the ____________of our company's sucess.

A. drive
B. core
C. key

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One of the difficulties non-profit organiztions face now is the lack of sufficient ______.

A. money
B. fund
C. capital

A _______company has many branch companies.

A. father
B. parent
C. mother

楼梯主要由( )、( )和( )三部分组成。

A. 梯段
B. 阳台
C. 平台
D. 栏杆扶手

每个楼梯段的踏步数量一般不应超过( )级,也不应少于( )级。

A. 15
B. 18
C. 5
D. 3

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