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單項(xiàng)選擇題

If you（）a magnet-needle, its two ends can point North and South, and so it can be used to determine directions.

A.overtake
B.fix
C.highlight
D.suspend

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單項(xiàng)選擇題

Shaking hands when people meet each other for the first time is practiced as a（）way of greeting.

A.conventional
B.conservative
C.constant
D.convenient

單項(xiàng)選擇題

Richard's news report covering the conference was so（）that nothing had been omitted.

A.comprehensive
B.integrated
C.redundant
D.productive