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【判断题】
海关总署对出口食品原料种植、养殖场实施备案管理。出口食品原料种植、养殖场应当向所在地海关办理备案手续。A.
正确
B.
错误
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举一反三
【简答题】Want to save the environment? You probably can’t fix everything on your own, but by taking small steps and keeping the environment in mind every day, you can make a difference, 1. Think Green. Challen...
【简答题】You can fix sheets of paper together with ________________.
【简答题】You can fix sheets of paper together with a ( ).
【单选题】听力原文：W: Water keeps dripping in the kitchen, Can you fix the tap? M: Why don't you call a plumber? Who might be the man?
A.
The woman's neighbor.
B.
The woman's husband.
C.
A plumber.
D.
A repairman.
【简答题】阅读理解。 Want to save the environment? You probably can't fix everything on your own, but by taking small steps and keeping the environment in mind every day, you can make a difference, 1. Think Green. C...
【单选题】下列说法中不正确的是( )。
A.
乙二醇中由于含有二个亲水性基团，因此它可以任意比例与水混合
B.
由于胺基为亲水性基团，因此均苯三胺可以任意比例与水混合
C.
由于异丙醇中含有1个羟基，因此异丙醇可以与水混合
D.
由于正丁醇中含有1个羟基，因此正丁醇可以任意比例与水混合
【单选题】What does the author say about reciting a memorized text?
A.
It is only customary to memorize the shortest speeches.
B.
It should be encouraged to do so though it is not customary today.
C.
Speakers should try to remember all the words all the time.
D.
It is always better than reading through the manuscript.
【单选题】Something is wrong__________ my radio. Can you help fix it for me?
A.
for
B.
of
C.
on
D.
With
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