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【单选题】
下列实验操作中正确的是( )A.
制取溴苯:将铁屑、溴水、苯混合加热
B.
实验室制硝基苯:先加入浓硫酸,再加苯,最后滴入浓硝酸
C.
用浓硫酸与乙醇混合液共热控制在170℃制乙烯气体
D.
用浓溴水可以除去苯中混有的苯酚
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皮皮学刷刷变学霸
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【单选题】It is hoped that the teaching reform. ____ in our school at present will bring the ___ result to the students.
A.
carried out, desiring
B.
carrying out, desired
C.
to carry out, desired
D.
being carried out, desired
【简答题】简述企业内部招聘的优点
【简答题】简述内部招聘的优点。
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【单选题】It is hoped that the president’s visit will a better understanding between the two countries.
A.
make for
B.
count on
C.
show off
D.
take up
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A.
intrusion
B.
interruption
C.
intervention
D.
interference
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