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【判断题】
(9)对于一个已定的计算公式，其系数不会随其公式中的变量单位的不同而变化A.
正确
B.
错误
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举一反三
【单选题】The first thing the visitor says to Mr Lessing is _________.
A.
Are you Mr Lessing
B.
You must be Mr Lessing
C.
Who are you?
【单选题】The first thing the visitor says to Mr. Lessing is _____.
A.
Are you Mr. Lessing?
B.
You must be MR. Lessing.
C.
Who are you?
【单选题】The first thing the visitor says to Mr. Lessing is ... P11_1_mp4.mp4
A.
Are you Mr. Lessing?
B.
You must be Mr. Lessing.
C.
Who are you?
【简答题】真正的真诚是（）
【单选题】The first thing the visitor says to Mr Lessing is ...
A.
Are you Mr Lessing?
B.
You must be Mr Lessing
C.
Who are you?
D.
Who is that?
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