皮皮学，免费搜题
登录
搜题
【单选题】
对毒性物质的危险特性说法不正确的是A.
锑、汞、铅等金属的氧化物大都具有氧化性。
B.
萘酚、酚钠等化合物，遇高热、明火、撞击有发生燃烧爆炸的危险。
C.
无机毒害品具有可燃性，、热源与氧化剂会着火爆炸，同时放出有毒气体。
D.
大多数毒性物质遇酸、受热分解能放出有毒气体或烟雾。
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
【单选题】My hair is ______ than my sister's. [ ]
A.
short
B.
shorter
C.
more short
D.
much short
【单选题】The _____ temperature is 12℃, and the _____ temperature is 25℃. [ ]
A.
tall, short
B.
short, tall
C.
low, high
D.
hight, low
【简答题】Where will B spend his summer vacation? And why? ____________
【单选题】________，John returned to school from his hometown.
A.
The summer vacation being over
B.
The summer vacation is over
C.
Because the summer vacation over
D.
After the summer vacation being over
【单选题】My English teacher has _________ hair. A. brown curly short B. brown short curly C. short curly brown
A.
brown curly short
B.
brown short curly
C.
short curly brown
【单选题】My English teacher has _________ hair. A. brown curly short B. brown short curly C.
A.
brown curly short
B.
brown short curl y
C.
short curly brown
【单选题】关于基因型与表现型关系的叙述，其中错误的是 [ ]
A.
表现型相同，基因型不一定相同
B.
基因型相同，表现型不一定相同
C.
在同样的环境中，基因型相同，表现型不一定相同
D.
在同样的环境中，表现型相同，基因型不一定相同
【简答题】完形填空 Summer Vacation in the USA Summer vacation in the USA usually l in July 2 August. It is the best time 3 many people to have a rest(休息) and travel. Some people like 4 at home during the vacation. ...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
