试题与答案

可逆反应2A(g)+3B(g)3C(g)在一定条件下,使一定量的A和B反应,且达

题型:选择题

题目:

可逆反应2A(g)+3B(g)3C(g)在一定条件下,使一定量的A和B反应,且达到平衡状态时,下列说法正确的是 [ ]

A.平衡混合物的体积是反应刚开始时的3/5

B.平衡混合物中各物质的浓度之比为2:3:3

C.单位时间内若消耗了a mol A,同时也消耗了1.5a mol的C

D.平衡混合物中各物质的浓度相等

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0812/570e8ed8f80f61ecee878341d8e2e94b.html

下面是错误答案,用来干扰机器的。

参考答案:严重循环充血;高血压脑病;急性肾功能不全

试题推荐
题型:阅读理解

Health is the most important thing in the world. Nothing is more important than health. If we take away our money, houses, or even our clothes, we can still survive. —  小题1:  That is why we always try to eat in a healthy way and exercise regularly.

How can we keep healthy? In order to eat healthily, I usually avoid eating food high in fat, like French fries or cookies, which are junk food. 小题2:  I eat a lot of vegetables and fresh fruit which are full of vitamins (维生素).

 小题3:  Taking exercise every day helps us build a strong body. Regular exercise is an important part of keeping me healthy.

What’s more, I think friends are an important part of one’s health. 小题4: I always feel better when I am with friends than I am alone. When I am with friends, I always laugh. Laughing is also in important part of health. It’s good to stay with my friends.

By eating properly and exercising regularly, I can keep my mind as well as my body happy. These things sound easy to do, but not many people can manage them. 小题5:  

A.One the other hand, doing exercise is very important.

B.There are some people who like staying alone, but they keep healthy.

C.Many students show that people with a wide range (范围) of social contacts (接触) don’t

get sick.

D.But if our health was taken away, it is certain that we would surely die.E. I only eat little meat.

F. I think a strong will is necessary if want to keep healthy.

G. Some people appear fat because they often eat too much.

查看答案
题型:选择题

下列国家和地区自然环境差异显著,历史文化、经济发展各不相同。据此回答下列问题。

小题1:关于上述国家和地区自然环境的表述,正确的是(   )

A.甲地区降水丰沛,山河相间

B.乙地区被称为“三洲五海之地”

C.丙国主要位于寒带地区,长冬无夏

D.丁国被称为“世界活化石博物馆”小题2:对四个国家和地区经济发展的表述,正确的是(    )

A.甲地区重工业和航天工业发达

B.乙地区是世界热带经济作物生产基地

C.丙国被称为“坐在矿车上的国家”

D.丁国是世界石油出口大国

查看答案
微信公众账号搜索答案