单项选择题

The lift was out of （）, so we had to watk all the way up to the top floor.

A. function
B. work
C. order
D. running

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We have to （） many difficulties in the course of social reforms.

A. cope with
B. keep with
C. come up with
D. catch up with
单项选择题
Other medical technology groups are working on （） telemedicine to rural care.

A. applying
B. supplying
C. replying
D. implying
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