选择填空 ＿＿＿useful information it is A How B How a C What D What a

选择填空 ＿＿＿useful information it is A How B How a C What D What a
选择填空 ＿＿＿useful information it is A How B How a C What D What a

选择填空 ＿＿＿useful information it is A How B How a C What D What a
C
不明白的再问哟,请及时采纳,多谢!

C
information是不可数名词，排除D和b
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