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【判断题】
74LS138是3-8译码芯片。当其控制端满足译码条件时，如果其译码输入C、B和A是010（低电平、高电平和低电平）组合时，则输出译码有效，即74LS138的译码输出端是低电平的是/Y0。A.
正确
B.
错误
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举一反三
【单选题】--I fell off my bicycle and broke my leg yesterday.--Is that ______ you drank too much?
A.
why
B.
how
C.
because
D.
when
【单选题】I drank a cup of tea to relieve my _____.
A.
thirst
B.
thirst
C.
thirsting
D.
thirsted
【单选题】My boss required so much of me, so I believed that he was _____ being satisfied with my job though I had tried my best. [ ]
A.
next to
B.
subject to
C.
far from
D.
away from
【单选题】I was satisfied with her explanation, () .
A.
so my classmates were
B.
so were my classmates
C.
so my classmates did
D.
so did my classmates
【简答题】I was a teacher but I want to be a doctor now. ______ A) So is my friend B) So do my friend C) So was my friend D) So it is with my friend
【判断题】影子是光的反映,也是一种真实空间的反映和写实性绘画。生活中的影子追求真实,设计中的影子则是富有深刻寓意的创意活动,必须达到给人以震惊与视觉上的冲击。
A.
正确
B.
错误
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