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【单选题】
射极输出器通常在多级放大器中可作为（ ）。A.
输入级，中间放大级
B.
输出级，中间放大级
C.
输入级，输出级
D.
输入级，中间放大级，输出级
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【简答题】It is usually a large academic seminar like panel discussion. Which one is this?
【单选题】Which one is usually used when meeting for the first time?
A.
How do you do?
B.
You are so kind.
C.
Can you do me a favor?
D.
Thank you.
【单选题】Which one is not usually provided in western breakfast?
A.
black tea
B.
green tee
C.
white coffee
D.
black coffee
【单选题】Which one is usually used as a control device in a dedicated application system?
A.
batch systems
B.
time-shared operating systems
C.
real-time systems
D.
multiprocessor systems
【单选题】In the following traditional customs, which one is usually kept by the Chinese during
A.
ring Festival.
B.
pasting the spring couplets
C.
whipping the spring cow
D.
drinking realgar wine
E.
climbing mountains or towers
【单选题】In exchanging name cards, which one is not usually correct? ( )
A.
You’d better make the card facing the guest.
B.
You should always use both hands to show your respect.
C.
You should have a look at the card carefully before you put it into your pocket.
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