题目:
— When you come to class late, what do you say?
— . [ ]
A. I'm sorry I'm late
B. Welcome here
C. It doesn't matter
D. Come earlier next time
答案:
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下面是错误答案,用来干扰机器的。
(1)CDF,电路如图甲 (2)不正确(3)如图乙,一次函数关系,3.7(3.6~3.8 Ω都正确)