铁水中硅含量过低易造成热量不足、渣量少不易去除磷硫等有害元素,因此要求铁水的硅含量要

题型:判断题

问题:

铁水中硅含量过低易造成热量不足、渣量少不易去除磷硫等有害元素,因此要求铁水的硅含量要高。()

考点:精炼工精炼工题库
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假如你是林平,你的笔友Sally正在美国的一所学校学习汉语,她给你发了一个电子邮件。请根据其内容,给予回复。邮件的开头及结尾均已给出(不计入总词数)。

要求:1. 词数80左右。

2. 条理清楚,语意连贯,句式规范。

参考词汇: listening ability(能力), spoken Chinese, radio, TV programs, video tapes

From:  Sally

To:    Lin Ping

Subject: Asking for help

Dear Lin Ping,

How are you getting on? Thanks for telling me something about your school life. I’m glad you’re doing well in your English study.

As you know, I began to learn Chinese 2 years ago. Now let me tell you something about my Chinese study. Though I can read and write a little Chinese, I’m still weak in listening and my spoken Chinese isn’t improving. I find it hard to talk with the people around in Chinese. Could you give me some advice? How I wish I could talk to you in Chinese one day!

Hope to hear from you soon.

Yours,

Sally

From: Lin Ping

To:   Sally

Subject: Re: Asking for help

Dear Sally,

Glad to hear from you. You say you have some problems in learning Chinese. Don’t worry. __________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

I hope you will make great progress in your Chinese study. Good luck!

Yours,

Lin Ping

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老师给小芳和小军同学一个任务,合作制取两瓶气体,一瓶O2和一瓶CO2,实验桌上只有下 * * 套装置,为了选择仪器不冲突,小芳选A作发生装置,小军选B作发生装置。

(1)小芳可以选择的药品是                     ,反应的方程式为                                                         

(2)小军可以选择的药品是                     ,反应的方程式为                                                         

(3)选择收集装置时为了不冲突,小芳应该选                  作收集装置,小军应该选              作收集装置。

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词语辨析。(8分)

“她能打字,一分钟能打八、九十个字”中的两个“能”是否可以换成“会”?为什么?

题型:判断题

下列哪一项不属于老年人的用药原则( )。

A.确诊用药

B.严格地遵循个体化原则寻求最适宜剂量

C.用药品种应尽量避免复杂化

D.选择适宜的投药方法

E.老年人用药量以小剂量为好,如不足以产生疗效也不能联合用药

题型:判断题

抗原抗体反应的温度范围一般为

A.15~35℃
B.15~40℃
C.15~25℃
D.18~42℃
E.15~37℃

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