单项选择题：视同提供应税服务的，纳税义务发生的时间是（） A.应税服务完成的当天 B.开具发票的

题型：阅读理解

Skin Diving Interesting & Useful

Skin-diving, a new sport today, takes you into a wonderful new world! It is like a visit to the moon!

When under water, it is easy for you to climb big rocks because you are no longer heavy, much lighter than on land!

Here, under water, everything is green and blue. During the day, there is plenty of light. When fish swim nearby, you can catch them with your hands!

With a tank of air on your back, you can stay in deep water for a long time, but you must be careful when you dive in deep water.

To catch fish is one of the most interesting parts of the sports. Besides, there’re more uses for skin diving. You can clean and repair ships without taking them out of water. You can get many things from the deep sea.

小题1: The underlined sentence “takes you into a wonderful new world” in the first paragraph means ____________.

A．the moon is a wonderful place to visit.

B．climbing big rocks under water is wonderful.

C．skin-diving is a wonderful way for traveling.

D．you can see many things you’ve never seen and enjoy yourself.小题2:With a tank of air on your back, you can _______.

A．swim like a fish

B．have more fun

C．go deeper under water and stay longer

D．catch fish more easily小题3:What does the last paragraph mainly tell us?

A．Skin diving is a new sport today.

B．Skin diving is interesting as well as useful.

C．How to catch fish.

D．What you can see under water.小题4:We can probably find this article in a ________.

A．newspaper

B．text book

C．sport magazine

D．guidebook小题5:Which of the following is Not True about skin-diving according to the passage?

A．You feel lighter when you go under water.

B．You can clean and fix ships without taking them out of water at skin diving.

C．There’s enough light under water all the time.

D．You can see fish and catch them at skin-diving.

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题型：多项选择题

常用的风险事后控制方法有（）。

A.风险转移

B.风险定价

C.风险资本的重新分配

D.提高风险资本水平

E.制订应急预案

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题型：选择题

如图所示，两根相距为l的平行直导轨ab、cd、b、d间连有一固定电阻R，导轨电阻可忽略不计；MN为放在ab和cd上的一导体杆，与ab垂直，其电阻也为R；整个装置处于匀强磁场中，磁感应强度的大小为B，磁场方向垂直于导轨所在平面（指向图中纸面内）；现对MN施力使它沿导轨方向以速度v（如图）做匀速运动；令U表示MN两端电压的大小，则（　　）

A．U=vBl，流过固定电阻R的感应电流由b到d

B．U=vBl，流过固定电阻R的感应电流由d到b

C．U=vBl，流过固定电阻R的感应电流由b到d

D．U=vBl，流过固定电阻R的感应电流由d到b

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题型：问答题

我国研制并自行发射的同步通信卫星，是无线电波传播的中继站，这类卫星虽然绕地心转动，但是我们却觉得它在空中静止不动，这是因为观察者所选的参照物是（　　）

A．太阳

B．月亮

C．地球

D．宇宙飞船

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题型：单项选择题

粒细胞缺乏症为粒细胞

A．＜4.0×l09/L
B．＜3.0×l09/L
C．＜2.0×l09/L
D．＜1.0×l09/L
E．＜0.5×109/L

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视同提供应税服务的，纳税义务发生的时间是（） A.应税服务完成的当天 B.开具发票的

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