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问题 单项选择题

男性，62岁，6周前曾由轻微头部外伤，近10天头痛伴渐进性右侧肢体无力。

为确定诊断应首选哪项检查()

A．头颅X线检查

B．检眼镜

C．神经系统检查

D．头颅CT

E．腰穿

答案

参考答案：D

选择题
When I got to his house, his father came out and said, "_______".

A. You are welcome.
B. Oh, you've come.
C. It's kind of you to come.
D. Why, you didn't come until now.
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单项选择题

基站覆盖范围与以下哪些个因素无关（）

A.天线高度

B.天线类型

C.基站发射功率

D.用户
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