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【单选题】
手术中识别输卵管的标志是A.
输卵管漏斗部
B.
输卵管伞
C.
输卵管壶腹部
D.
.输卵管峡部
E.
输卵管子宫部
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举一反三
【单选题】— Do you know ______ he has done with the money? — He has bought a new house in a garden district. [ ]
A.
how
B.
when
C.
what
D.
where
【单选题】在标准ASCII码表中，已知英文字母I的ASCII码是01001001，英文字母F的ASCII码是
A.
01000110
B.
01110001
C.
01010100
D.
01011111
【单选题】听力原文：M: Bill won't graduate until this summer, but did you know that he has already started his own computer company last semester? W: Wow, he's really put what he has learned into practice. Q: What d...
A.
He needs to take some remedial courses.
B.
He didn't do very well in school.
C.
He is able to apply his knowledge.
D.
He won't be able to graduate this semester.
【判断题】带平衡电抗器的双反星可控整流电路，其输出电压脉动较小且变压器无直流磁化问题，与不带平衡电抗器的双反星形可控整流电路相比，变压器的利用率可提高一倍，对晶闸管电流定额的要求也较低。
A.
正确
B.
错误
【单选题】－－Has he finished his essay? －－I dont know. He __________ it this morning.A.has written##
A.
--Has he finished his essay? --I dont know. He __________ it this morning. A.has written
B.
was writing
C.
wrote
D.
had written
【判断题】双反星可控整流电路的特点之一,是整流变压器副边铁芯线圈的利用率要比六相半波可控整流电路提高 1 倍,因此,在要求输出同样大小功率的条件下,变压器的容量小了不少,而且不存在直流磁化问题。
A.
正确
B.
错误
【单选题】---Do you know how long ________? ----I’m sorry I don’t know.
A.
he has come here
B.
has he been married
C.
Tom has bought the car
D.
his uncle has been abroad
【单选题】I don’t know whether he has finished the novel, but he ________ it this morning.
A.
was reading
B.
has read
C.
read
D.
had read
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