皮皮学，免费搜题
登录
搜题
【简答题】
酒精灯是中学化学实验中最常用的加热仪器，请回答下列与酒精灯有关的问题： （1）熄灭酒精灯时要用灯帽盖灭，这种灭火方法的主要原理是______． （2）化学实验中，如果不慎碰倒酒精灯，洒出的酒精在桌上燃烧起来，你应采用的灭火方法是______． （y）实验室用烧瓶制取蒸馏水时，烧瓶的底部应垫放______． （得）玻璃管插入带橡皮塞，先把玻璃管的一段______，然后稍稍用力转动插入．
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】Michael Jackson was one of the world’s best singers. He was born in the middle west of the city of Gary, Indiana, in 1958. He began singing with his four brothers. They called the group “ The Jackson ...
【单选题】下列对人力资源的描述不正确的是( )。
A.
企业全体员工的能力
B.
企业组织内外具有劳动能力的人的总和
C.
一个国家或地区有劳动能力(体力劳动或脑力劳动)的人的总和
D.
社会人口总和
【简答题】--Did you listen to Mr. Jackson’s lecture? --Yes, I have never heard a _______one.
【简答题】Michael Jackson is one of the world’s best singers. Michael Jackson was born in the middle west of Gary, Indiana, in 1958. He began singing with his four brothers. They called the group “Jackson Five”...
【单选题】I have heard of_______ Michael Jackson, but not_______ famous one.
A.
/, a
B.
a, the
C.
/; the
D.
the; a
【简答题】阅读理解 Advertisement One The Michael Jackson 'Michael 109' T-shirt is a great way to remember American music legend! We also sell Jackson's Thriller album. Why not turn up the volume on your CD player o...
【简答题】阅读理解。 Michael Jackson is one of the world's best singers. Michael Jackson was born in the middle west of the city of Gary, Indiana, in 1958. He began singing with his four brothers. They called the gr...
相关题目：
【单选题】下列对人力资源的描述不正确的是( )。
A.
企业全体员工的能力
B.
企业组织内外具有劳动能力的人的总和
C.
一个国家或地区有劳动能力(体力劳动或脑力劳动)的人的总和
D.
社会人口总和
参考解析：
知识点：
题目纠错 0
发布
