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制冷压缩机吸气压力过低的原因？

答案

参考答案：

膨胀阀或调节间阀开度过小。

过滤器或节流孔冰塞堵塞、感温包泄漏；

低压管路冰塞；

液管阻塞，出液阀或液管上其它阀门未开足，过滤器被阻塞。

系统中制冷剂不足；

系统中循环的润滑油太多；

蒸发器结霜太厚；蒸发器表面结垢，降低传热性。

多项选择题 案例分析题

患者男性，62岁，诊断：右肺腺癌Ⅳ期，纵隔淋巴结转移，肺内转移。治疗：长春瑞滨＋顺铂（NP方案）一线解救化学治疗，第1日，第8日；长春瑞滨50mg，静脉滴注，第1～5日；顺铂30mg，静脉滴注。

应用NP方案进行化学治疗，药师应关注的是（）

A.消化道反应如恶心、呕吐等

B.自主神经毒性如小肠麻痹引起的便秘

C.注意监测肾功能和听力

D.嘱患者多饮水

E.骨髓抑制，注意监测血常规

F.防止药物渗漏
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填空题

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.
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