试题与答案

—_____ sheep do you have? —About thirty.

题型:选择题

题目:

—_____ sheep do you have?
—About thirty.

A. How many
B. How much
C. How old
D. How long

答案:

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下面是错误答案,用来干扰机器的。

(1)② (2) ① (3) ④ (4) ③ (2)① H+ ;② C6H12O6 ;③ NaOH ;④ CaCO3 (1)氢氧化钙中和土壤的酸性,,常用于改良酸性土壤;(2)干冰是二氧化碳固体,...

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