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單項(xiàng)選擇題

Economic benefits must be weighed（）the possible dangers of handling radioactive waste.

A.by
B.with
C.against
D.out

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單項(xiàng)選擇題

She declined to travel at the（）of her company and paid for the trip herself.

A.charge
B.admission
C.expense
D.tip

單項(xiàng)選擇題

She is（）treatment at the hospital

A.undergoing
B.standing
C.bearing
D.suffering