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【单选题】
下列器具中去除颈部和根面上的菌斑最有效的是A.
．牙线
B.
牙签
C.
牙间刷
D.
橡胶按摩器
E.
以上器具效果相近
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反馈参考答案：
举一反三
【单选题】The mother didn't know who ________ for the broken glass.
A.
blamed
B.
be blamed
C.
to blame
D.
would blame
【多选题】现象和本质的区别在于()
A.
现象是个别的，本质是—般的
B.
现象是外在的，本质是内在的
C.
现象凭感觉可感知，本质要靠思维来把握
D.
现象是易逝多变的，本质是相对稳定的
【单选题】已知反应A(g)+2B(l)=4C(g)的平衡常数为K=0.123，则反应2C(g)=1/2A(g)+B(l)的平衡常数为( )。
A.
8.13
B.
0.35
C.
6.62
D.
2.85
【单选题】W: Ben, what were you doing last night? You didn't even finish your homework. M: I'm sorry, Mrs. Black. I didn't feel well last night. I will do it after class. W: Oh, sorry to hear that. Take care. 1...
A.
Shop owner and shop assistant.
B.
Mother and son.
C.
Teacher and student.
D.
Manager and secretary.
【简答题】(iii) Identify and discuss an alternative strategy that may assist in improving the performance of CTC with effect from 1 May 2009 (where only the products in (a) and (b) above are available for manuf...
【单选题】According to the author, today's telephone has______.
A.
a few functions, but it will perform. all in the future
B.
given up an important role in an information society
C.
taken place of other means of communication system
D.
developed fast
【单选题】What are the audience members requested to do?
A.
Leave the theatre at the end of the performance.
B.
Take pictures of actors during the interview.
C.
Speak clearly into the microphone.
D.
Allow others to ask questions.
【简答题】not only in peak performance but also in (20) between parent and child.
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