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问题 单项选择题

眶壁骨折时，CT检查可出现哪些征象()

A．眶壁骨质断裂

B．断裂骨壁向筛窦或上颌窦移位

C．筛窦积血

D．上颌窦腔内出现“泪滴征”

E．以上都对

答案

参考答案：E

选择题
I waited for him nearly a whole morning _____ he didn't even bother to call me to tell that he had changed his mind.

A. during which
B. during when
C. where
D. which

 

 
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选择题

如图，是自然界中常见的一些现象、针对各种现象的解释，正确的是

A．玻璃上的小水珠是空气中水蒸气凝华形成

B．棒冰冒“白气”是棒冰升华形成

C．花草上的小露珠是草叶分泌出来的

D．热风干手器的作用是加快手上的水分蒸发
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