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【单选题】
You must have seen a lot of interesting movies, ______?
A.
don't you
B.
did you
C.
must you
D.
haven't you
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【单选题】在电路参数和级数相同的条件下,多级双调谐回路放大器与多级单调谐回路放大器的矩形系数相比较 。
A.
双调谐放大器的矩形系数减小的较快
B.
双调谐放大器的矩形系数减小的较慢
C.
减小速度相同
D.
无法比较
【单选题】下列不属于再保险合同收入的是()。
A.
分出保费
B.
摊回分保赔款
C.
摊回分保费用
D.
分保费收入
【单选题】多级双调谐回路的矩形系数比单级单调谐回路的矩形系数:
A.
B.
C.
相同
D.
不确定
【多选题】有一片的称为单子叶植物,下列属于单子叶植物有( )
A.
水稻和小麦
B.
桧柏和冷杉
C.
松和云杉
D.
玉米和洋葱
【单选题】The Mexican government takes half measures to solve the pollution problem because______
A.
Mexican economy depends very much on cars and factories
B.
it is not wise enough to come up with effective measures
C.
Mexicans are able to adapt themselves to the current emergency
D.
Mexicans enjoy playing dangerous games with their health
【判断题】茄子和辣椒在植物学分类、食用器官分类、农业生物学分类三种分类法上都属于同一类
A.
正确
B.
错误
【单选题】The effective rate of protection measures
A.
the "true" ad valor e m value of a tariff.
B.
the quota equivalent value of a tariff.
C.
the efficiency with which the tariff is collected at the customhouse.
D.
the protection given by the tariff to domestic value added.
【单选题】It’s high time we _______ effective _______to improve your working conditions.
A.
take; means
B.
made; measures
C.
took; measures
D.
do; actions
【单选题】以下树种叶片为螺旋状着生的是
A.
罗汉松
B.
水杉
C.
落羽杉
D.
池杉
【单选题】在电路参数和级数相同的条件下,多级双调谐回路放大器与多级单调谐回路放大器的矩形系数相比较 。
A.
双调谐放大器减小的较快
B.
减小速度相同
C.
双调谐放大器减小的较慢
D.
无法比较
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