如图所示是甲、乙两种物质的溶解度曲线。将t2℃时等质量的甲、乙两种物质的饱和溶液

题型:选择题

问题:

如图所示是甲、乙两种物质的溶解度曲线。将t2℃时等质量的甲、乙两种物质的饱和溶液降温到t1℃时

A.两种溶液仍是饱和溶液

B.两种溶液的质量仍相同

C.乙溶液的溶质质量分数比甲大

D.乙溶液中溶剂的质量比甲多

考点:固体溶解度气体溶解度
题型:选择题

肛管直肠癌的早期症状除便血外,还可见()

A.粪便变形

B.腹胀肠鸣

C.脱出不纳

D.排便习惯改变

E.肛门潮湿

题型:选择题

阅读下面的短文,然后按照要求写一篇150左右的英语短文。

Insistence or Giving up

There is a battle in our daily life. Two forces are fighting with each other again and again. They never stop until you are buried in the earth. We called them insistence and giving up. They are like twins. One is angle, and the other is a demon..

As we all know, we want to pass the CET-4. So we get our own strategy. First of all, I am bound to master five thousand vocabularies. Second, I will write an article every week which is at least two hundred words. Then I will read at least two English articles, make more friends with foreigners for learning native English, and listening to some English news broadcast every day.

Nevertheless, according to my strategy, the first day, I should wake up at 6 a.m. to memorize at least twenty words. The alarm clock rings for me; I should get rid of my bed in order to study. Suddenly, “Giving up” came and whispered to me. “What about a five-minute prolong sleeping? How soft, comfortable this bed is! But Ms Insistence urged me, “Don’t listen to him; Come on, let’s carry out our plan.” Her voice is sweet, but not what I need.

Time flies! If we can’t seize every opportunity to appreciate time, Mr. Giving up will win all the time. Insistence of your plan, your dream may not be accomplished successfully, but giving up, you are sure to fail in life. (237w)

【写作内容】

有些人做事有时候缺乏持之以恒的毅力。请就“坚持” 还是 “放弃”的话题发表你自己的看法,内容要点包括:

1 以约30个词概括阅读材料的要点;

2 请选择一个角度,用你自己或朋友的经历,以约120个词谈谈自己的观点,内容包括:

1)持之以恒对工作和学习有什么意义;

2)以成功或失败的事例来说明持之以恒的重要性;

3)你对大家的建议是什么。

【写作要求】

在作文中可以使用自己的亲身经历或虚构的故事,也可以参照阅读材料的内容但不得直接引用原文中的句子;作文中不能出现真实姓名和学校名称。

题型:选择题

统计表的基本结构包括()

A.标题、纵横标目、图例和数字

B.主标题、副标题、标目、线条、数字和备注

C.标题、纵横标目、线条、数字和备注

D.标题、标目、线条、数字和文字说明

E.标目、线条、数字和备注

题型:选择题

论述火力发电的基本原理。

题型:选择题

考核周期内综合得分为()的,出租汽车驾驶员服务质量信誉考核等级为B级。

A.0分

B.1~10分

C.11~19分

D.20分及以上

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