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问题 单项选择题 A1型题

蛛网膜下腔出血伴有外侧裂血肿时，其诊断主要考虑为（）

A.大脑前动脉动脉瘤

B.大脑中动脉动脉瘤

C.大脑后动脉动脉瘤

D.前交通动脉瘤

E.后交通动脉瘤

答案

参考答案：B

填空题

已知（3+x）n的展开式中二项式系数之和为16，则n=______；设i为虚数单位，复数（1+i）n的运算结果为______．
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选择题

______housing prices are going up madly, it is almost certain that the local government focuses not on improving people’s life but on trying to earn money by selling state land.

A．As

B．If

C．Where

D．Unless
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