双电控电磁阀的两端电磁线圈可同时得电。()
A. 对
B. 错
The local goverment has always placed a strong emphasis ---- education and vocational training.
A. with
B. for
C. on
D. to
The meeting room is so small that it can be hold 20 people----.
A. at last
B. at first
C. at most
D. at once
She give us a detailed ---- of the local goverment's new health-care proposal.
A. impression
B. explanation
C. education
D. communication
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