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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1.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

2.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