出炉钢温取决于（）。 A.空气的预热温度 B.炉温 C.炉温和在炉时间

阅读理解。

     I read an article about people who are living in the e-age. It talks about different ways of communication

like chatting online, sending e-mails or messages and writing.

     The article says that people, nowadays send e-mails at least once a day. I don't agree with this because I

send e-mails only twice a week. However, I check my e-mails once a day. I like receiving e-mails.

     The article also says that chatting online is becoming more and more popular among teenagers. It is true.

Whenever I arrive at home, I turn on my computer and log on to chat online with my friends. I prefer chatting

online to calling a friend, because I can chat with many friends at the same time.

     I also like using mobile phones. When I do not have my computer with me, I can send short messages to

my friends. I also like keeping in touch with them in this way. Besides, I like telling others what has happened

to me. I keep an online diary, four times a week.

     I think I cannot live without computers or mobile phones. What about you?

1. How often does the writer send e-mails?

A. Never.

B. Once a day.

C. Twice a week.

D. Four times a week.

2. What does the underlined phrase " log on" mean in Chinese?

A. 点击

B. 控制

C. 开机

D.登录

3. Which of the following is NOT true according to the passage?

A. The writer enjoys living in the e-age.

B. The writer always checks his e-mails.

C. The writer always calls his friends when he gets home.

D. Chatting online has become more and more popular.

4. What does the writer disagree with the article?

A. About chatting online.

B. About times sending e-mails.

C."About times checking e-mails.

D. About keeping in touch with friends

5. What is not mentioned in the passage?

A. Making pen pals.

B. Keeping an online diary.

C. Living in the e-age.

D. Sending a short message.

下列哪些是制作个别托盘的适应证（）

A.牙槽嵴有散在的骨尖

B.无合适的成品托盘

C.取无牙颌的印模

D.牙槽嵴两侧吸收不一致

E.余留牙伸长明显

下列各项中，不符合借贷记账法记账规则的是( )。

A．资产数额的增加记在借方

B．所有者权益、负债数额的增加记在贷方

C．收入数额的减少记在借方

D．成本、费用数额的增加记在贷方

宜首选氢化可的松治疗的病症是（）

A.哮喘持续状态

B.肺源性心脏病性呼吸困难

C.青霉素过敏引起的呼吸困难

D.心源性哮喘

E.中度支气管哮喘发作

当瓦斯浓度达到断电点时，瓦斯监测系统将切断工作面电源和本机电源。