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【单选题】
The farmers plan to produce three times____ in the year before last to meet the increasing need of the people.
A.
of crop as much this year as
B.
as much crop this year as
C.
as more crop this year as
D.
much crop this year than
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举一反三
【单选题】吗啡不宜用于下列哪种疼痛?
A.
肿瘤晚期
B.
术后剧痛
C.
心肌梗死
D.
分娩痛
【单选题】吗啡不宜用于下列哪种疼痛()
A.
外伤性剧痛
B.
心肌梗死疼痛
C.
手术后疼痛
D.
分娩疼痛
E.
癌症晚期疼痛
【单选题】对于工作波长为 1.31 μ m 的阶跃折射率单模光纤,纤芯折射率为 1.5 ,包层折射率为 1.003( 空气 ) ,纤芯直径的最大允许值为( )
A.
0.34μ m
B.
0.90μ m
C.
3.0μ m
D.
4.8μ m
【判断题】活塞和气缸壁之间的润滑方式是:飞溅润滑
A.
正确
B.
错误
【简答题】( )all the computers in this laboratory, this one works best.
【单选题】— Make sure that you have tuned off all the computers in the office before you leave. — _ ▲ __
A.
Made it
B.
Got it
C.
Forgot it
D.
Heard it
【判断题】用于回购的人民币债券包括国债、中央银行票据、政策性金融债以及企业债券。 ( )
A.
正确
B.
错误
【单选题】El hombre corre ___ su mujer gritando algo.
A.
de
B.
hacia
C.
por
D.
desde
【单选题】对于包层折射率为1.45,纤芯折射率为1.46,工作波长为1550 nm的SIOF,其单模截止时的光纤半径为?
A.
2.98 um ;
B.
3 um ;
C.
3.48 um ;
D.
4.26 um 。
【单选题】—Make sure that you have turned off all the computers in the office before you leave. — ___________.
A.
Made it
B.
Got it
C.
Forgot it
D.
Heard it
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