根据MARPOL公约附则Ⅳ规定，经过粉碎机和消毒器处理的生活污水，允许在离岸最近距离

正确的蛙泳动作周期应该有以下几个阶段：（）

A、划手、蹬腿、滑行

B、蹬腿、滑行

C、划手、蹬腿

Kofi Annan says helping survivors of last week’’s earthquake and (1)________in the Indian Ocean is (2)________. The United Nations secretary-general says countries that have offered aid must (3)________and provide it. The offers add up to around (4)________dollars. United Nations officials say (5) ________of that is needed during the next six months.The concern about offers of international aid is (6)________. For example, the earthquake in Bam, Iran, in (7)________of 2003 killed more than (8) ________people. Countries and groups offered hundreds of millions of dollars (9) ________. The United Nations says it has (10)________only about (11)________dollars in aid received so far. Governments and organizations that offered help (12) ________that, however.On (13)________Mr. Annan met with world leaders in Jakarta, Indonesia to discuss aid for (14)________. The leaders discussed and (15)________the idea of (16)________owed by affected nations. But the leaders did not say they would do so. Some said that (17)________to survivors would be more helpful.Representatives of (18)________countries and international organizations attended the meeting in Jakarta. Officials say they will cooperate to develop (19)________ for the Indian Ocean and the (20)________.

从所给的四个选项中，选择最合适的一个填入问号处，使之呈现一定的规律性。（）

A.A

B.B

C.C

D.D

患者男性，27岁，因被人用刀刺伤背部，伤口流血不止半小时急诊入院。查体：神志尚清楚，表情淡漠，自诉口渴，皮肤苍白，P120次/分，BP90/70mmHg，脉压小，表浅静脉塌陷，尿少。

请估计该患者的失血量已达全身血容量的

A．10%左右
B．20%左右
C．20%～40%
D．50%左右
E．大于50%

某大型设备振动试验台施工为大体积的钢筋混凝土施工，负责该项目的专业监理工程师在该工程开工前审查了承包人的施工方案。编制了监理实施细则，设置了质量控制点。
[问题]