题目内容

下列轻骨料混凝土小型空心砌块特点中，不正确的是______。

A. 密度较小
B. 热工性能差
C. 干缩较大
D. 宜产生裂缝

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下列功能不宜采用中空玻璃的是______。

A. 保温
B. 隔热
C. 吸光
D. 隔声

The farm produced more food than ______ thought possible during World War Ⅱ.

A. ever be
B. would ever be
C. has ever been
D. had ever been

She has to work hard to keep the house ______ and tidy with three small children.

A. smooth
B. neat
C. compact
D. plain

The old lady ______ leaving the store without paying for the goods.

A. refused
B. denied
C. rejected
D. defied