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【简答题】
补偿导线法常用作热电偶的温度补偿,它的理论依据是 定律
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举一反三
【单选题】How old was Andrew Carnegie when he had emigrated from Scotland to America?
A.
17
B.
20
C.
13
D.
12
【简答题】一个ASCⅡ用______个字节表示。
【单选题】--- I didn’t see you at the party yesterday. Why? --- Because I ________ for an important person from America at that time.
A.
was waiting
B.
is waiting
C.
will wait
D.
have waited
【简答题】一个ASCII用______个字节表示。
【简答题】Expenses belong to a certain __________ period.