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搜题
【判断题】
利用反馈归零法获得N进制计数器时,若为异步置零方式,则状态SN只是短暂的过渡状态,不能稳定而是立刻变为0状态。
A.
正确
B.
错误
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举一反三
【单选题】已知点A点B的坐标A(2,-3)、B(5,1)则A,B两点间的距离是 [     ]
A.
4
B.
5
C.
6
D.
7
【单选题】English in many countries. But Chinese their own language. [     ]
A.
is spoken; speaks
B.
speaks; is spoken
C.
is spoken; speak
【判断题】《证券法》具有强制性。
A.
正确
B.
错误
【单选题】He never speaks to others until ______.
A.
he speaks
B.
spoken to
C.
he is spoken
D.
he speaks to
【单选题】I collect _____ .
A.
stickers
B.
sticker
【单选题】I collect stamps, I collect tickets, _____.
A.
in fact
B.
too
C.
as well as
D.
either
【判断题】微机版CAD系统发展的一条主要途径就是网络化
A.
正确
B.
错误
【单选题】开会时,坐在( )的人更容易建立自信。
A.
前面
B.
中间
C.
中后方
D.
后排
【单选题】—Why do you often collect garbage? —I collect garbage ______ protect the environment.
A.
so that
B.
in order to
C.
for
D.
/
【单选题】I used to _____ to rock music, but now I collect coins. [     ]
A.
listening
B.
listen
C.
listens