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【单选题】
在下列备份介质中哪一个是采用螺旋扫描方式读写的?( )A.
盒式带
B.
数字线形带
C.
1/4英寸磁带
D.
数字声频带
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】—Is that Mr. Wang speaking? —Sorry. He isn’t at home. He ________ abroad for a trip.
A.
has gone to
B.
has been to
C.
has gone
D.
has been
【单选题】Mr. Wang often comes to work very early, ______?
A.
isn’t he
B.
does he
C.
doesn’t he
【简答题】Amy: Hello, ABC Company. How can I help you? Jim: Hi. May I speak to Mr. Wang? Amy: I’m sorry. Mr. Wang isn’t in the office at the moment. Would you like to leave a 1) _______? Jim: Yes, please. Cou...
【简答题】白僵蚕断面平坦,外层白色,中间棕色或棕黑色,具丝腺环( )。A.1个B.2个C.3个D.4个A. 1 B. 1 C. 1 D. 1
【单选题】---- Mr. Wang isn’t a teacher, is he? ---- . He’s taught in our school for 5 years. A. No, he is B. No. he isn’t C. Y es, he is D. Yes, he isn ’ t
A.
B.
C.
D.
D
【单选题】Mr. Wang isn’t popular with his students because he doesn’t treat them _____.
A.
equally
B.
badly
C.
regularly
D.
formally
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