问题题干答案解析相关问题热门问题最新问题

问题详情

筛分试验不需要的实验仪器是( )

A、天平

B、摇筛机

C、标准套筛

D、搅拌机

时间：2021-09-02 13:46 关键词：国家开放大学建筑材料(A)

答案解析

D

相关问题

请将你认为不适合描述为国家开放大学特色的选项选择出来。（）
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
A cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
A cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
_________ in a person’s speech or writing usually ranges on a continuum from casual or colloquial to formal or polite according to the type of communicative situation.