100ml 1mol/L的AlCl3溶液与100ml3.5mol/L的NaOH溶

题型:选择题

问题:

100ml 1mol/L的AlCl3溶液与100ml 3.5mol/L的NaOH溶液混合,得到沉淀为(  )

A.7.8g

B.0g

C.91 g

D.19.5g

考点:单质铝铝盐(铝离子)氢氧化铝
题型:选择题

Recently, many people have begun to try a new way of doing shopping through the Internet. They are very interested in it. Why is itbecoming more and more popular now? There are some reasons. First, more and more people have their own computers and their computers can be joined with the Internet. So it is possible for many of them to do shopping through the Internet. Second, shopping through the Internet can save them some money and a lot of time. Third, they don't need to go to the shop themselves.  Because of these good facts, few people refuse it.

On the other hand, some people don't like this new way of shopping. They are worried about the safety of shopping online. Customers(顾客)can only see the pictures of a product on the Internet. And they can't enjoy the pleasure of buying things in a large supermarket or a wonderful shopping center. These are the reasons why they do not like it.

But I think more and more people will like this new kind of shopping in the future.

小题1:Many people are interested in ______ online.

A. watching TV B reading C. studying D. shopping

小题2:From the first paragraph,we know ______.

A.no one likes buying things online

B.more and more people don't like shopping through the Internet

C.shopping on the Internet is more and more popular

D.There are no advantages about shopping on the Internet小题3:People like doing shopping on the Internet because it can ______.

A.save their money and time

B.help them make a lot of money

C.be very easy

D.help them save time小题4:Some people don't like shopping online because they______.

A.have to pay more money

B.must send their money first online

C.don't have enough time

D.are worried about the safety of shopping online小题5:What's the best title(题目)of this passage?

A.Why don't people like going shopping?

B.Shopping through the Internet is very popular.

C.How do people shop with little money?

D.Chinese people don't like shopping on the Internet.

题型:选择题
方程x2=5x的解是(   )
A、x=0
B、x=5
C、X1=0,x2=5
D、无法确定
题型:选择题

外周血出现幼稚细胞称为核左移。

题型:选择题

患者罹患慢性阻塞性肺疾病5年,现喘逆剧甚,张口抬肩,鼻扇气促,端坐不能平卧,稍动则咳喘欲绝,心慌动悸,烦躁不安,面青唇紫,汗出如珠,肢冷,脉浮大无根。其中医辨证为()

A.正虚喘脱证

B.肾虚不纳证

C.肺气虚耗证

D.肺气郁闭证

E.痰浊阻肺证

题型:选择题

图甲、乙分别是一个反射弧及其部分结构放大模式图,回答下列问题:

取指血进行化验,当针刺手指时,并未发生缩手反射,原因是该反射受到()的控制。

更多题库