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【单选题】
根据药物对胎儿的危害,美国FDA将妊娠用药毒性分为A、B、C、D、X五个级别,利的妊娠毒性分级是A.
C级
B.
D级
C.
A级
D.
X级
E.
B级
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反馈参考答案：
举一反三
【单选题】We need to take effective measures to solve the current problem ______ just making complaints.
A.
instead of
B.
instead
C.
not at all
D.
besides
【简答题】(选词填空)We need to solve the problem as soon as possible under the guidance of the________ consultant company.[可选词:complement, strive, interpret, relay, external, symbolic, prediction, capture]
【简答题】We need to solve the problem as soon as possible under the guidance of the ________ consultant company. complement strive interpret relay external symbolic prediction capture
【单选题】Do we need to ________someone else to solve the problem?
A.
involve
B.
take part in
C.
join
【单选题】We need to get to the root of the problem_( )__ we can solve it.
A.
while
B.
after
C.
before
D.
as
【单选题】We need to get to the root of the problem ____we solve it.
A.
while
B.
after
C.
before
D.
as
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