题目内容

5. (5.0 points )Steel is outstanding as a structural material, because it never deforms and can thus be used in skyscrapers.

A. 对
B. 错

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6. (5.0 points )The mixture of water, sand and gravel can be compressed into concrete.

A. 对
B. 错

1. Match the phrases with their Chinese equvilents.(20.0 points)

具有双重国籍的开国上将是()。

A. 叶飞
B. 彭德怀
C. 林彪
D. 朱德

叶飞是开国上将。

A. 对
B. 错

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