在（）情况下电梯投入使用前，必须经过市级特种设备检验机构检测。A.新装的 B.大修的

水合反应蒸发系统水运前应具备的条件是（）。

A、公用工程系统运行正常

B、氧化反应岗位运行正常

C、吸收岗位运行正常

D、压缩岗位运行正常

易于发生急性冠脉综合征的是（）

A.抗凝血酶缺乏

B.骨科大手术

C.下肢静脉血管内皮损伤、血液高凝状态、静脉血流淤滞

D.冠状动脉粥样硬化、不稳定斑块

E.房颤心房血栓形成

某年某中学体检，测得100名高一女生的平均身高=154cm，S=6.6cm，该校高一女生中身高在143～170cm者所占比重为（U0.0078=-2.42，U0.0475=-1.67）（）

A.90%

B.94.5%

C.97.5%

D.95%

E.99%

电视胸腔镜手术治疗手足多汗症是切断（）

A.膈神经

B.迷走神经

C.胸交感神经

D.喉返神经

E.臂丛神经

World Water Shortage

A new study warns that about thirty percent of the world’s people may not have enough water by the year 2025.
A private American organization called (1) Action International did the new study. It says (2) than three-hundred-thirty-five-million people (3) enough water now. The people live in twenty-eight (4) . Most of the countries are in Africa or the (5) East.
P-A-I researcher Robert Engelman says (6) the year 2025, about three-thousand-million people (7) lack water. At least 18 more countries are (8) to have severe water problems. The demand (9) water keeps increasing. Yet the amount of water on Earth (10) the same.
Mr. Engelman says the population in countries that lack water is (11) faster than in other parts of the world. He says (12) growth in these countries will continue to (13) .
The report says lack of water in the future may (14) in several problems. It may increase health (15) . Lack of water often means drinking (16) not safe. Mr. Engelman says there are problems (17) over the world because of diseases, such as cholera, (18) are carried in water. Lack of water may also result (19) more international conflict. Countries may have to (20) for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning.