乳化液的比热容小，粘度小，流动性好，主要起润滑作用。( )_爱下问搜题

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问题判断题

乳化液的比热容小，粘度小，流动性好，主要起润滑作用。( )

答案

参考答案：错

选择题

I ________ for you for two hours at the gate of school.

A. wait
B. have been waiting
C. am waiting
D. have been waited

填空题

一个关系表的行称为______。