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【单选题】
可判断脑血栓形成患者发生脑水肿的表现是A.
.头晕、抽搐
B.
.视物不清
C.
.剧烈头痛
D.
.神志模糊
E.
.头痛、呕吐、视乳头水肿
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【单选题】图示正方形截面短柱承受轴向压力P作用，若将短柱中间开一个槽如图所示，开槽所消弱的面积为原来原积的一半，则开槽后柱中的最大压应力为原来的( )。【图片】
A.
2 倍
B.
4 倍
C.
8 倍
D.
16 倍
【简答题】How often one hears children wishing they were grown-ups, and old people wishing they were young again. Each age has its pleasures and its pains(痛苦), and the happiest person is the one who enjoys what...
【单选题】图示正方形截面短柱承受轴向压力P作用,若将短柱中间开一个槽如图所示,开槽所消弱的面积为原来原积的一半,则开槽后柱中的最大压应力为原来的 。
A.
2倍
B.
4倍
C.
8倍
D.
16倍
【简答题】阅读理解。 How often one hears children wishing they were grown-ups and old people wishing they were young again! Each age has its pleasures and its pains, and the happiest person is the one who enjoys wha...
【单选题】Many people prefer text messages(短信)to actually talking. Almost overnight, text messages have become the preferred form. of communication for millions. But even as industry calculations show that Amer...
A.
Text messaging may result in many accidents.
B.
Text messaging has caused most of the accidents recently.
C.
Many people are going to text messages instead of telephoning.
D.
The government is now trying to stop text messaging.
【单选题】图示正方形截面短柱承受轴向压力P作用，若将短柱中间开一个槽如图所示，开槽所消弱的面积为原来原积的一半，则开槽后柱中的最大压应力为原来的 。【图片】
A.
（ A ） 2 倍
B.
（ B ） 4 倍
C.
（ C ） 8 倍
D.
（ D ） 16 倍
【单选题】一正方形截面短柱，承受轴向荷载作用，若根据需要将短柱中间部分开一小槽，如图所示，开槽所削弱的面积是原面积的1/2。短柱的最大压应力为（ ）
A.
3P/a²
B.
3P/2a²
C.
2P/a²
D.
P/a²
【简答题】阅读理解。 How often one hears children wishing they were grown-ups and, old people wishing they were young again. Each age has its pleasures and its pains, and the happiest person is the one who enjoys wh...
【单选题】图示正方形截面短柱承受轴向压力P作用，若将短柱中间开一凹槽如图所示，开槽所削弱的面积为原面积的一半，则开槽后柱中的最大压应力为原来的（ ）。【图片】
A.
2 倍
B.
4 倍
C.
8 倍
D.
16 倍
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