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问题 选择题

通常情况下，下列物体中属于导体的是（　　）

A．玻璃杯

B．橡胶棒

C．铜钥匙

D．陶瓷碗

答案

题中四个选项中，铜钥匙是金属所以是导体．玻璃杯、橡胶棒、陶瓷碗都是绝缘体．

故选C．

选择题

all her spare time to her study during the three years, Tedy finally took the first place in her school in the College Entrance Examination and received the admission notice from her dream university.

A．Devoted

B．Having devoted

C．To be devoted

D．She had devoted
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多项选择题

根据《期货公司风险监管指标管理试行办法》，期货公司在做出以下（）决定前应当对相应的风险监管指标进行敏感性测试。

A.减少注册资本

B.扩大业务规模

C.变更法定代表人

D.解聘首席风险官
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