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问题 单项选择题

设真空中点电荷+q1和点电荷+q2相距2a，且q2=2q1，以+q1为中心、a为半径形成封闭球面，则通过该球面的电通量为（）。

A.A

B.B

C.C

D.D

答案

参考答案：C

填空题

词汇运用

1．His parents were also accused of ________(帮助他逃跑)．

2．Three people died in the accident and 12 were ________(严重受伤)．

3．If we leave it as it is. it will ________(失血而死)．

4．I can hardly believe the fact that she ________(毒死她的丈夫)．

5．"I didn't mean to upset you. " he said ________(温柔地)．

6．I felt my reputation ________(受到伤害) by the newspaper article.

7．At last. we managed to ________(塞进6个人) into the car.

8．The police will only interview the child ________(当着父母的面)．

9．There is ________(很多压力) on us senior students.

10．Good food and plenty of exercise ________(必不可少的) a healthy life.
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单项选择题

1型糖尿病的治疗应采用（）.

A.单纯饮食治疗

B.口服降糖药物治疗

C.胰岛素治疗

D.适当休息

E.支持疗法
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