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【单选题】
下列系统功能块用于实现连续PID控制的是 。A.
SFB41
B.
SFB42
C.
SFB43
D.
FB41
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举一反三
【单选题】What a dangerous scene! A car has missed the boy playing on the roadside________ only an inch. [ ]
A.
within
B.
for
C.
by
D.
at
【单选题】A car accident______him from playing football．
A.
enabled
B.
abled
C.
disabled
D.
unabled
【单选题】---A car knocked Jack down while he was playing on his way home. ---Really? We are told in the street.
A.
not playing
B.
not play
C.
don’t play
D.
not to play
【简答题】单词拼写。 1. She took the car without ______________. (许可,允许) 2. The kids are always playing ______________on their teacher. (诡计,恶作剧) 3. I decided to go on a ______________before my holiday. (节食) 4. The a...
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