普萘洛尔: A.诱发支气管哮喘 B.抗血小板凝聚 C.二者均可 D.二者均否

题型:单项选择题

问题:

普萘洛尔:

A.诱发支气管哮喘
B.抗血小板凝聚
C.二者均可
D.二者均否

考点:基础医学医学药理学肾上腺素受体阻断药
题型:单项选择题

在人体实验中,以犯人为受试者,认识正确的是()

A.在任何情况下,都不允许以犯人作为受试者

B.只要有犯人的签字同意,以犯人为受试者可以得到伦理的辩护

C.一般情况下,是不允许用犯人做实验的,即使使用犯人作为受试者,必须首先考察是否具备受试者的条件

D.犯人是犯了罪的人,用他们作受试者,是给他们一个为社会做贡献从而改过自新的机会

E.应该按照公安部门的安排进行

题型:单项选择题

对于认知风格属于场依存型的学生,适合的教学方法是 ( )

A.为其提供无结构的材料,让他自己探索

B.多鼓励学生自学

C.给学生充分的时间,让其总结出结构性的知识

D.教师要给学生提供一些明确的指导和讲解

题型:单项选择题

已知乙酸与乙酸乙酯的混合物中氢(H)的质量分数为7%,则碳(C)的质量分数是( )。

A.42.0%
B.44.0%
C.48.6%
D.91.9%

题型:单项选择题

社会治安综合治理中的管理和公安部门的治安管理有什么不同?

题型:单项选择题

The first time I remember noticing the crossing guard was when he waved to me as I drove my son to school. He (31) me with a puzzle-all because he waved to me like someone does on seeing a close friend. A big, (32) smile accompanied his wave. For the next few days I tried tO study his face to see if I knew him. I didn’t. Perhaps he had (33) me for someone else. By the time I contented myself with the conclusion that he and I were strangers, we were greeting each other warmly every morning like old friends.

Then one day the (34) was solved. As I approached the school he was standing in the middle of the road (35) his stop sign. I was in live behind four cars. Once the kids had reached the safety of the sidewalk, he lowered his sign and let the cars (36) . To the first he waved and smiled in just the same way he had done to me over the last few days. The kids already had the window down and were happily waving their reply. The second car got the same (37) from the crossing guard, and the driver, a stiff-looking businessman, gave a brief, almost awkward wave back. Each following car of kids on their way to school (38) more heartily.

Every morning I continued to watch the man with interest. So far I haven’t seen anyone (39) to wave back. I find it interesting that one person can make such a difference to so many people’s lives by doing one simple thing like waving and smiling warmly. His (40) armed the start of my day. With a friendly wave and smiling fade he had changed the feelings of the whole neighbourhood.

32()。

A. false

B. shy

C. apologetic

D. bright

更多题库