题目内容

Is there any water ____ the kettle?

A. behind
B. on
C. into
D. in

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That tin of tobacco is not ____ me.

A. to
B. for
C. from
D. with

There is a quarter ____ a pound of tea in the bag.

A. of
B. off
C. to
D. in

What are you going to do ___ that letter?

A. to
B. on
C. into
D. with

下面哪一项不属于医用传感器的特性

A. 足够高的灵敏度:因为生物信号是微弱的。
B. 传感器不用采集人体信号。
C. 足够快的响应速度:以便准确的捕捉到生物体信息的变化。
D. 良好的稳定性和准确性:保证获得的信息准确 ,稳定。