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【单选题】
电路如图所示。 已知 R 1 =2k Ω , R 2 =18k Ω, 该电路的闭环电压放大倍数为 ( )。A.
9
B.
10
C.
11
D.
12
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举一反三
【单选题】—But those are size 44. You might need a smaller size. —Yes, I ______ a bit of weight. I have been trying to lose weight!
A.
will have lost
B.
should have lost
C.
may have lost
D.
can’t lose
【简答题】对于高速重载的滚子链传动,应选用节距________的________排链;对于低速重载的滚子链传动,应选用节距___的___排链传动。
【单选题】听力原文：W: I have heard you're being sent to Madrid for the annual conference. Is that true? M: Yes, it would be my first trip overseas. Actually, it's going to be my first time leaving our country. W: W...
A.
Former classmates
B.
Neighbors
C.
Colleagues
D.
Husband and wife
【多选题】You have a class B network with a 255.255.255.0 mask. Which of the statements below are true of this network? (Select all valid answers)
A.
There are 254 usable subnets.
B.
There are 256 usable hosts per subnet.
C.
There are 50 usable subnets.
D.
There are 254 usable hosts per subnet.
E.
There are 24 usable hosts per subnet.
F.
There is one usable network.
【简答题】案情：A有限责任公司是一家经营化妆品的公司，由于市场不景气，加上经营无方，公司负债严重。在一次董事会会议上，董事A提议将公司分立为B、C两个公司，由B公司承担A公司的债务，C公司利用A公司的净资产。该提议被董事会一致通过，A公司分立为B、C两家公司，约定B公司承担老公司所有债务。然后分立各方办理了相应的登记注销手续。不久，A公司的债权人D公司找上门来，发觉B公司资不抵债，遂要求C公司承担连带债务。...
【简答题】对于高速重载的滚子链传动，应选用节距（）的（）排链；对于低速重载荷的滚子链传动，应选用节距（）的链传动。
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