单项选择题

21（）

A．who
B．which
C．where
D．whom

<上一题 目录 下一题>
热门 试题

单项选择题
Hill-Rom devices use ______ to locate nurses.
A．locator badges
B．infrared signals
C．spies
D．cameras
单项选择题
Nurses worry the devices will be used to ______.
A．tape conversations
B．monitor break time
C．make them work harder
D．listen to conversations and watch what they do
相关试题