Measures have been taken to fight ______

题型:选择题

问题:

Measures have been taken to fight ________recurring food safety problems, but there is still a long way to go before China can rid itself ________ these issues.

A.for; of

B.for; from

C.against; of

D.against; from

考点:介词和介词短语
题型:选择题

He apologized for ______ to inform me of the change in the plan.

A.his being not able

B.him not to be able

C.his not being able

D.him to be not able

题型:选择题

宏观、中观和微观行政环境各自具有独立性,三者之间具有明确的划分界限。()

题型:选择题

下列化学用语表示正确的是(  )

A.乙烯的结构简式:CH2CH2

B.HCl分子的电子式:H:Cl

C.CO2的结构式:O=C=O

D.8个中子的碳原子的核素符号:12C

题型:选择题

根据工作压力选用压力表的量程范围,一般应在工作压力的( )倍。

A.0.5~2

B.1.5~3

C.0.5~3

D.1.5~5

题型:选择题

下列关于法的描述中正确的是()

A.可用于虚证

B.前臂主动做推旋动作

C.前滚和回滚时着力轻重之比为3:1

D.手法频率为120~160次/min

E.适用于全身各部

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