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【单选题】
已知一放大电路中某三极管的三个电位分别为3.5V、2.8V、5V,则此三极管是( )。A.
PNP硅管
B.
NPN硅管
C.
PNP锗管
D.
NPN锗管
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举一反三
【单选题】'What _____ I get my morn for her birthday?' 'Why _____ you get her a scarf?.' [ ]
A.
should; don't
B.
would; do
C.
could; will
【单选题】I don't think teenagers should be allowed _______ their cars _______. [ ]
A.
get, to pierce
B.
getting, pierce
C.
getting, pierced
D.
to get, pierced
【单选题】I don't think it's good to copy others' homework. You should ____________it. [ ]
A.
get over
B.
get on
C.
get up
D.
get off
【单选题】---Haven’t I told you that you should get home earlier? ---Yes, but I __________ home earlier than I usually do.
A.
was coming
B.
will come
C.
came
D.
had come
【单选题】I don’t know what kind of pet __________.
A.
getting
B.
to get it
C.
should I get
D.
I should get
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