单项选择题

Susan wants to know whether the measures have been agreed ().

A. to
B. with
C. over
D. upon

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单项选择题

Other medical technology groups are working on () telemedicine to rural care.

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

单项选择题

She was late again, () was annoying.

A. what
B. who
C. that
D. which

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