Edison was a great inventor. He ______ t_爱下问搜题

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问题选择题

Edison was a great inventor. He ______ to inventing things.[ ]

A. give himself

B. gave him

C. devoted himself

D. devoted him

答案

答案：C

单项选择题

大气污染物通常是以______状态形式存在于空气中。

A．离子和原子

B．烟尘和烟雾

C．气体和粒子

D．分子和蒸气

单项选择题

医院沟通沟通步骤中的第五步是（）

A.做好沟通准备

B.力争达成协议

C.选择沟通方式

D.妥善处理异议