(6分)(1)0.3mol NH3分子中所含质子数与mol H2O分子中所含质子

题型:填空题

问题:

(6分)(1)0.3mol NH3分子中所含质子数与       mol H2O分子中所含质子数相等。

(2)已知16克A和20克B恰好完全反应生成0.04mol C和32克D,则C的摩尔质量为________。

(3)如果a g 某气体中含有的分子数为b,则c g 该气体在标准状况下的体积为       L(NA表示阿伏加德罗常数的数值)。

考点:物质的量
题型:填空题

情绪和情感相比[ ]

A.情绪是人类特有的  

B.情绪更深刻  

C.情感更深刻、持久  

D.情感是人和动物共有的

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配对阅读 左栏是五位病人的健康问题,右栏是七位专科医生的简介。请根据五位病人的健康问题为他们选出最合适的专科医生诊病,并将答题卡上对应题目所选的选项涂黑。
小题1:Bob is often late for school because he always gets up late. This makes his teacher mad. He needs to buy something to wake him up in the morning.
小题2:Tim likes listening to music when he is free. And he has to send e-mails to his customers(顾客)every day. He wants to buy something that can help him.
小题3:Summer has come. Tony is fat and he can’t sleep well on such hot days. This troubles him a lot. He’d like to buy something to make him feel cool.
小题4:Alice often washes her hair late at night. It is often wet when she goes to bed. She is going to buy something that can dry her hair in a short time.
小题5:Susan is a housewife. She has to do the washing for her family every day. She gets tired of it. She is in need of a product to do it for her.
A.This electric product can make you cool during the hot days. It can help you change the temperature and control the humidity(湿度) of your room.
B.You can do many things with this product, such as sending e-mails, playing games, getting on line and so on. You can also listen to the music with it when you want to relax.
C.This electric product is useful to all of us. People often have one at home. It is often put up on the wall. If you want to know the time, just take a look at it.
D.This can help you wash your dirty clothes and dry them. What you need to do is to return it on and later hang the clothes on the line. With this electric product, life will be a lot easier for you.
E. Each family needs this product. You can use it to store meat, vegetables, fruits, drinks and medicine. It can keep them cool and fresh so that they will not go bad easily on hot days.
F. It is a very helpful product which tells you the time. It can wake you up with a piece of music any time you want, but you have to set the time first.
G. When you wash your hair, you need this product. It can make your wet hair dry in a minute. It can also be used for drying your wet clothes or some other wet things.
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患者女性,37岁。药剂师,头晕、乏力1个月,多次查血常规全血细胞均减少,为明确诊断首先应行()

A.抗核抗体的监测

B.肿瘤系列

C.骨髓象监测

D.染色体

E.凝血时间

题型:填空题

文件根据数据性质,可分为 【12】 文件和 【13】 文件。

题型:填空题

除了商业资本和产业资本的分工,商业资本独立化的条件还有()

A.商业资本和借贷资本的分工

B.商业资本家有独立的投资

C.存在独立的商业活动

D.存在出卖劳动力为生的商业店员

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