陀螺罗经的灵敏部分通常由哪些部分组成？（） A.陀螺仪 B.陀螺仪的控制设备 C.陀

卵巢黏液性囊腺癌的病理特点是（）

A.单房、稀薄液体、衬低柱上皮、间质浸润

B.多房、稀薄液体、衬高柱状上皮、间质浸润

C.单房、黏稠液体、衬低柱上皮、间质浸润

D.多房、黏稠液体、衬高柱状上皮、间质浸润

E.多方、血性液体、衬单层柱状上皮、间质浸润

It is over 40 years since first atomic bomb was dropped on a major city in Japan. Yet even now its effects are showing themselves and may continue to do so for years to come. Much effort and human energy have been used to try to prevent such a terrifying thing from happening again. So far there is no guarantee that it will not. Countries which already possess nuclear knowledge and resources have bombs stored away which are powerful enough to wipe out all life on earth. But this is not all. Other countries, which previously were not so advanced in technology, are gradually buying materials that can be used for making atomic devices. This nuclear energy will naturally be of great value in helping the economy of poorer nations.

The generation of electricity through nuclear power came directly from the original work on the atom bomb. Because of the increase in demand for energy and the possibility of decreasing supplies of oil and natural gas, the interest in electricity has increased. One of the by-products of nuclear power stations is plutonium (钸) produced from unclear fuel: plutonium is ingredient (成分) in bomb-making. It means that there are far more opportunities for the manufacture of bombs.

This brings the problem to a full circle again. How can something so valuable and useful be controlled so that it works for the benefit and not the destruction of man?

9. The effects of dropping the first atomic bomb ________.

A. are not over                    B. may go on forever    

C. could last much longer            D. will not be over in the near future

10. The writer says that enough atomic bombs have already been manufactured to ________.

A. wipe out Japan                  B. last forever    

C. act as a peace-keeping device      D. destroy all living things

11. The advantage of less developed countries being able to make atomic devices is that it ______.

A. gives them more opportunities for work     B. will help poor countries to become richer

C. will enable them to make better explosives   D. will be of great value to them

12. The second paragraph tells us that the increased demand for electricity today ________.

A. has led to the decrease in supplies of oil

B. means that more countries are interested in nuclear power

C. has increased the risk of accidental explosions

D. has increased the very means of producing more atomic bombs

如油槽温度过高，会引起淬火油槽失火，此时应立即打开油槽的事故排油管，将油放入集油槽中，用（），使火与空气隔绝而自灭。

A．泡沫灭火器喷射

B．湿砂扑救

C．水喷射

D．铁板将油槽口盖上

三原色指的是（）。

A、白

C、红

B、黄

D、蓝

胸部创伤下列哪种情况不是立即开胸探查指征（）

A.进行性血胸

B.食管裂伤

C.胸内异物存留，有严重咯血等临床症状

D.创伤性窒息

E.气管、支气管断裂