The book, which _______ children, became

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问题选择题

The book, which _______ children, became popular with adults.

A．was planned for

B．was meant by

C．was intended for

D．was designed by

答案

答案：C

填空题

铜钱在历史上曾经是一种广泛流通的货币。试从物理性质和化学性质的角度分析为什么铜常用于制造货币。（铜的熔点是1183.4℃，铁的熔点是1534.8℃）

_______________________________

填空题

生产经营单位的安全生产管理必须有（），否则安全生产管理就无从谈起。