皮皮学，免费搜题
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【单选题】
下列不属于组合逻辑电路的是____。A.
寄存器
B.
计数器
C.
移位寄存器
D.
译码器
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】The manager ______ the worker how to do it, or the accident couldn’t have happened.
A.
couldn’t have told
B.
ought to tell
C.
could have told
D.
mustn’t have told
【单选题】Two identical slides in air are illuminated with monochromatic light. The slides are exactly parallel, and the top slide is moving slowly upward. What do you see in top view? 1. all black 2. all brigh...
A.
1
B.
2
C.
3
D.
4
E.
5
【单选题】When and where to enjoy our summer vacation _____ yet. [ ]
A.
aren't decided
B.
isn't being decided
C.
hasn't been decided
D.
haven't been decided
【单选题】—Where are you going for your holiday? —Well, we ______ yet. [ ]
A.
haven't decided
B.
hadn't decided
C.
don't decide
D.
didn't decide
【简答题】The
worker decided to finish the work on ____.A. contact B. schedule C. stress D. staff
【单选题】Monochromatic light shines on a pair of identical glass microscope slides that form a very narrow wedge. The top surface of the upper slide and the bottom surface of the lower slide have special coati...
A.
1
B.
2
【单选题】The worker decided to finish the work on ____.
A.
contact
B.
schedule
C.
stress
D.
staff
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