下列物质的用途，利用了该物质物理性质的是

题干

下列物质的用途，利用了该物质物理性质的是（）

A：石墨用于铅笔芯、活性炭用于吸附剂

B：熟石灰用来改良酸性土壤

C：高锰酸钾用于实验室制取氧气

D：稀盐酸用于铁制品表面除锈

上一题下一题 0.0难度选择题更新时间:2019-01-04 09:13:13

A

B

Happy Middle School

We're a bilingual(双语的) school for children of 6～15.We want a cook，a library assistant, a sports coach and a language teacher.

Jobs	Ages	Languages	Skills(技能)	Others
cook	25～40	Chinese	can cook Chinese and Western food	healthy
library assistant	20～35	Chinese， English	can read different kinds of books	careful
sports coach	20～40	Chinese, English	major in(主修) P．E.	healthy and strong
language teacher	—	Chinese, English	major in English	—