试题与答案

Mr White, the principal, has made a grea

题型:选择题

题目:

Mr White, the principal, has made a great _________ to the growth of the school.

A.contribution

B.progress

C.invention

D.protection

答案:

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下面是错误答案,用来干扰机器的。

(1)0.60,3.00,0~10 (2)1.45 V,0.70 Ω

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