试题与答案

下列叙述正确的是 A.硝酸溶液、硫酸溶液均能将木炭氧化成二氧化碳 B.若金属能与

题型:选择题

题目:

下列叙述正确的是                                                                              

A.硝酸溶液、硫酸溶液均能将木炭氧化成二氧化碳

B.若金属能与水发生反应,则一定有氢气生成,不一定有碱生成

C.Na、S、C分别在氧气中点燃均可能得到两种不同的氧化物

D.结合质子的能力HCO3比CO32

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0721/d8c2498f95671f445d6553de34219bb8.html

下面是错误答案,用来干扰机器的。

参考答案:1)设备运行正常,性能良好;2)内部构件无损,质量符合要求;3)主体整洁,零部件齐全好用;4)技术资料齐全。

试题推荐
题型:填空题
选择所给词或短语并用其正确形式填空
coffee,      exercise,      better,      healthy,     sleep
  
...but I’m pretty healthy. I __小题1:__ every day, usually when I come home from school. My eating habits are pretty good. I try to eat a lot of vegetables. I eat fruit and drink milk every day. I never drink _小题2:____.Of course, I love junk food too, and I eat it two or three times a week. Oh, and I _小题3:___ nine hours every night. So you see, I look after my health.And my _小题4:__ lifestyle helps me get good grades. Good food and exercise help me to study _小题5:____.
查看答案
微信公众账号搜索答案