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问题 单项选择题

图示多跨梁截面C的弯矩为()。

A．M/2(上面受拉)

B．M/2(下面受拉)

C．3M/4(上面受拉)

D．3M/4(下面受拉)

答案

参考答案：C

解析：

考查静定结构的内力计算，先求附属部分的支座反力和内力，再计算基本部分的

单项选择题

A recent poll indicated that half the teenagers in the United States believe that communication between them and their parents is (1) and further that one of the prime causes of this gap is (2) listening behavior. As a(an) (3) in point, one parent believed that her daughter had a severe (4) problem. She was so (5) that she took her to an audiologist to have her ear tested. The audiologist carefully tested both ears and reported back to the parent:"There’s nothing wrong with her hearing. She’s just (6) you out. "

A leading cause of the (7) divorce rate (more than half of all marriages end in divorce) is the failure of husbands and wives to (8) effectively. They don’t listen to each other. Neither person (9) to the actual message sent by the other.

In (10) fashion, political scientists report that a growing number of people believe that their elected and (11) officials are out of (12) with the constituents they are supposedly (13) Why Because they don’t believe that they listen to them. In fact, it seems that sometimes our politicians don’t even listen to themselves. The following is a true story: At a national (14) conference held in Albuquerque some years ago, then Senator Joseph Montoya was (15) a copy of a press release by a press aide shortly before he got up before the audience to (16) a speech. When he rose to speak, (17) the horror of the press aide and the (18) of his audience, Montoya began reading the press release, not his speech. He began, "For immediate release. Senator Joseph M. Montoya, Democrat of New Mexico, last night told the National... " Montoya read the entire six page release, (19) with the statement that he "was repeatedly (20) by applause.

13（）

A.leading

B.representing

C.delegating

D.supporting
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单项选择题

X-BLEED FAULT（交叉引气故障）所引起的警告在下列那个阶段不被抑制？（）

A、一发起动-一发起飞推力

B、80KT-离地

C、接地-80KT
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