导电能力很强的物资称为（），几乎不导电的物资称为（）。

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问题填空题

答案

参考答案：导体绝缘体或电介质

补全对话，情景问答

( ) 1. Who is that?	A. That is my father. B. That is my mother.
( ) 2. What's it?	A. Thank you. B. It's a pencil.
( ) 3. Can he draw?	A. No, he can't. B. Yes, he can.
( ) 4. Thank you!	A. Happy birthday, Peter! B. Have a hamburger.
( ) 5. What do you like, Ann?	A. I like milk. B. I like rice.

单项选择题

单纯使用抗结核药物治疗肾结核的指征是

A．静脉肾盂造影一侧不显影

B．尿路造影检查显示一侧肾广泛严重破坏

C．肾结核伴膀胱挛缩

D．早期肾结核，肾盂造影显示病变轻微或范围较局限

E．一侧肾严重钙化