皮皮学，免费搜题
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【多选题】
基因表达的产物可以是A.
DNA
B.
tRNA
C.
mRNA
D.
rRNA
E.
蛋白质
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【简答题】收益性物业的运营费用是除抵押贷款还本付息和房产税之外发生的所有费用。
【单选题】All flights ______ because of the heavy storm, we decided to take the train.
A.
having canceled
B.
being canceled
C.
having been canceled
D.
canceled
【单选题】---- Are we going sightseeing next week? ---- No. The plan ________ at the second meeting.
A.
had cancelled
B.
was cancelled
C.
has been cancelled
D.
would cancel
【单选题】Cancer Drug Trials Often Halted Early An increasing number of clinical trials for new cancer treatments are being halted before the risks and benefits have been fully evaluated, say Italian researcher...
A.
Right
B.
Wrong
C.
Not mentioned
【简答题】收益性物业的运营费用是除抵押贷款还本付息和房产税之外发生的费用。
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