如图是元素周期表中的一格，从中获取的信息正确的是（ ） A．该元素的元素符号为C

Years ago，if a teenager had some problems in his life，he might write them in his diary. Now he might get on the Internet and write them in his blog(博客). In many ways，a diary and a blog are almost the same. Then，what makes a blog different from a diary?

The biggest difference is that a blog is much more public than a diary. Anyone can read what you write in your blog. Usually，a teenager likes hiding his diary book and treats it as secret. If you are not satisfied with a friend and write something bad about him in your diary，he will never know it. However，if you do this on the Internet，that friend may read your blog and get angry. So we have to be careful of what we write.

A blog has good points，of course. People choose to write in blogs，they know that their friends will read what they write. If you feel sad one day and write in your diary，no one will know about it. If you write the same words in your blog，your friends may quickly write back to comfort you and offer their help. Blogs help people know what their friends are doing.

Though it's a good way to write blogs about everyday life，I still prefer my old diary.

根据短文内容，选择最佳答案。

小题1:Now when a teenager has some problems in his life，he might ________.

A. talk to his friends  B. keep them in his diary  C. write them in his blog

小题2:________ is NOT mentioned in the passage.

A. Chatting on QQ  B. Getting on the Internet  C. Writing blogs

小题3:The underlined word “comfort” means ________ in Chinese.

A. 责怪    B. 安慰     C. 嘲笑

小题4:From the passage we know that ________.

A. the writer thinks a blog is more helpful than a diary

B. the writer thinks a blog and a diary are the same

C. the writer likes a diary better than a blog

小题5:The passage mainly talks about ________.

A. the teenagers' problems in their lives

B. the difference between a diary and a blog

C. the good points of writing blogs

偏酸性药液宜使用的抗氧剂有（）.

A.亚硫酸钠

B.亚硫酸氢钠

C.焦亚硫酸钠

D.硫代硫酸钠

E.硫脲

在计算消费税时，下列组成计税价格(或销售额)的表述，不正确的是______。

A．组成计税价格=(材料成本+加工费)÷(1-消费税税率)
B．组成计税价格=(成本+利润)÷(1-消费税税率)
C．组成计税价格=(关税完税价格+关税)÷(1-消费税税率)
D．组成计税价格=含增值税的销售额÷(1-消费税税率)

阅读戴望舒《雨巷》中的两节：

她是有丁香一样的颜色，丁香一样的芬芳，丁香一样的忧愁，在雨中哀怨，哀怨又彷徨；她彷徨在这寂寥的雨巷，撑着油纸伞。像我一样，像我一样地-默默行着，冷漠，凄清，又惆怅。

“默默彳亍着”的象征意义是什么？

请回答以下关于Internet的问题。

Internet电子邮件的标准是什么