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【判断题】
三态三种状态，即输出高电平、低电平和高阻状态，分别代表三种不同的逻辑值。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】--- Is this ______backpack? --- No, it is mine. That green backpack belongs to ______.
A.
his, he
B.
his, him
C.
he, him
【单选题】--- Is that your backpack? --- __________. It’s my backpack.
A.
No, they’re not.
B.
Yes, they are.
C.
No, it isn’t.
D.
Yes, it is.
【简答题】举例说明李白诗歌的艺术个性
【单选题】The boy ______ lost his backpack has to borrow books from his teachers. [ ]
A.
who
B.
whose
C.
which
D.
whom
【单选题】-- Whose backpack is this? -- ______________
A.
It’s 11.
B.
It’s Carriage 8.0
C.
It’s in the middle.
D.
It’s mine.
【单选题】--Whose backpack is this? ---It be Jim’s. Look, his student’s card is in it.
A.
must
B.
can
C.
mustn’t
D.
can’t
【单选题】The boy _____ lost his backpack has to borrow books from his teachers. [ ]
A.
who
B.
whose
C.
which
【简答题】试解释制成红砖与青砖的原理。
【简答题】听下面一段对话，回答4,5题。 1. Whose backpack is this? A. The backpack is Jane's. B. The backpack is Tom's. C.The backpack is Lucy. 2. What is Tom doing now? A. He is cleaning the classroom. B. He is writing a le...
【单选题】--- Whose backpack is this? --- It be Mary’s. She is looking for hers.
A.
can
B.
must
C.
may
D.
can’t
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