在调车作业时，不得附挂（）溜放其他车辆（推峰除外）。A、落下孔车 B、大轮车 C、机

在如图所示的电路中，两个相同的小灯泡L₁和L₂分别串联一个带铁芯的电感线圈L和一个滑动变阻器R.闭合开关S后，调整R，使L₁和L₂发光的亮度一样，此时流过两个灯泡的电流均为I.然后，断开S.若t′时刻再闭合S，则在t′前后的一小段时间内，正确反映流过L₁的电流i₁、流过L₂的电流i₂随时间t变化的图像是        (　　)．

鲁迅说：“外国用罗盘针航海，中国却用它看风水。”这说明的实质问题是( )。

A．中国迷信思想盛行

B．外国资本主义迅速发展

C．中国自然经济发展不需要科技

D．社会环境决定了科技能否发挥作用

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

     A punctual person is in the habit of doing a thing at the proper time and is never late in keeping an

appointment. The unpunctual man, on the other hand, never does what he has to do at the right time.

1_____.

     There's a proverb which says, "Time flies never to be recalled." This is true. 2_____. The unpunctual

man is for ever wasting his most valuable possessions as well as others'. The unpunctual person is always

complaining that he finds no time to answer letters, or return calls or keep appointments. 3_____. He knows

that he can get through his huge amount of work only if he faithfully keeps every appointment and deals

with every piece of work when it has to be attended to. 

     4_____. If a person is invited to dinner and arrives later than the appointed time, he keeps all the other

guests waiting for him. Usually this will be regarded as rude both to the host and the other guests.

     Unpunctuality, moreover, is very harmful when it comes to one's duty. Imagine how it would be if those

who are put in charge of important tasks failed to be at their proper place at the appointed time. 5_____

A. They appear to be busy but never get well paid.

B. He is always in a hurry and ends up losing time.

C. Maybe nobody minds being kept waiting at a dinner party.

D. A lost thing may be found again, but lost time can never be regained.

E. But the man who really has a great deal to do is very careful of his time.

F. A man who is known to be habitually unpunctual is never trusted by others.

G. Failure to be punctual in keeping one's appointment is a sign of disrespect towards others.

我国保险人一般将利润损失保险作为（）的一项附加险承保。

A、团体火灾保险

B、人身意外伤害保险

C、信用保证保险

D、财产保险

弥漫性甲状腺肿大疾病施行甲状腺大部切除术应掌握严格适应证，下列哪一项不适宜手术（）

A.结节性甲状腺肿继发亢进

B.巨大甲状腺肿影响工作和生活

C.原发性甲状腺功能亢进药物治疗后复发

D.慢性淋巴性甲状腺肿

E.结节性甲状腺肿疑有恶变