单项选择题

My advice is not to pay your key deposits in full ______ everything is signed.

(A) whichever
(B) as though
(C) until
(D) otherwise
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单项选择题
There have been several leading ______ in genetic engineering to help cure terminal cases.
(A) activeness
(B) advances
(C) currencies
(D) resistances
单项选择题
She declined to confirm reports that the central bank was considering ______ the money supply.
(A) manipulating
(B) using
(C) fabricating
(D) rising
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