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问题 单项选择题

寄存器窗口重叠技术是RISC的关键技术，这项技术能很好地支持过程调用和返回操作。这里所谓的重叠是指

A．高位寄存器与低位寄存器重叠

B．高位寄存器与局部寄存器重叠

C．全局寄存器与局部寄存器重叠

D．全局寄存器与高位寄存器重叠

答案

参考答案：A

完形填空

根据短文内容和首字母提示,把所缺单词填写在短文中相应的横线上,使句意完整正确.

A man w小题1: mending a street light when he s小题2: a  beautiful woman and three children get i-小题3: a car which was in the garden of a house near him. He saw that the car had a flat tyre and tried to tell the w 小题4:, but it was late-----she was already driving the car out of the garden and into the busy s小题5:. When she got there,she stopped the car on the side o小题6: the street, got out and looked at the f小题7:  tyre. The children still stayed in the c小题8: .Very soon another car stopped, and the driver was r小题9: to help her. The young woman thanked him for his help and the man changed the tyre for h小题10: .
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单项选择题

正常成人芬太尼静脉麻醉诱导时，能有效抑制气管内插管所致的心血管反应最小有效剂量是（）。

A.1～2pg/kg

B.2～3/μg/kg

C.3～5μg/kg

D.8～10μg/kg

E.>10μg/kg
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