不具有气体交换功能的结构是() A.肺泡管 B.呼吸性细支气管 C.细支气管 D.肺

题型:单项选择题

问题:

不具有气体交换功能的结构是()

A.肺泡管

B.呼吸性细支气管

C.细支气管

D.肺泡囊

考点:RDPAC医药代表认证RDPAC医药代表认证题库
题型:单项选择题

关系数据库的基本对象是( )、( )和( )。

题型:单项选择题

求助者的社会接纳程度也可以看作是( )。

A.本人的社会适应程度

B.本人接纳社会的程度

C.本人精神症状的改变程度

D.本人行为问题的残留程度

题型:单项选择题

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 Barn, 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) .

题型:单项选择题

什么是大浸酸和去酸?

题型:单项选择题

选拔身高T超过1.7米且体重W小于62.5公斤的人,表示该条件的布尔表达式( )。

A.T>=1.7AndW<=62.5

B.T<=1.70rW>=62.5

C.T>1.7AndW<62.5

D.T>1.70rW<62.5

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