题目内容

By now four communications zones for aircraft have gone into action, each of which is covered by one operational satellite and several back-ups.

A. Y
B. N
C. NG

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A. Show admiration to our spouses.
B. Offer great help to our spouses.
C. Praise our spouse in public.
D. Criticize our spouses in public.

A. Y
B. N
C. NG

A. Make interruptions.
B. Look cheerfully.
C. Remain quiet.
D. Express his opinions immediately.