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【单选题】
When you want to talk with a foreigner, you had better begin it wih .A.
his name, age
B.
his going
C.
salary
D.
current evernts
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【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】生地、熟地同用的方剂是
【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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