水银温度计破了以后正确的处理是:洒落出来的汞必须立即用滴管、毛刷收集起来,并用水覆盖

题型:判断题

问题:

水银温度计破了以后正确的处理是:洒落出来的汞必须立即用滴管、毛刷收集起来,并用水覆盖(最好用甘油),然后在污染处撒上硫磺粉,无液体后(一般约一周时间)方可清扫。

考点:高校实验室安全考试化学化学题库
题型:判断题

第二节(共5小题,每小题1.5分,满分7.5分)

根据短文内容,从下框的A ~ F选项中选出能概括每一段主题的最佳选项。选项中有一项为多余选项。

A.Review regularly

B.Make good use of class time

C.Find a good place to study

D.Plan your time carefullyE. Scan before you read

F. Take notes in class

How to become a better student 

Maybe you are an average(普通的;平常的)student with an average intellect. You probably think you will never be a top student. This is not necessarily so. Anyone can become a better student if he or she wants to be. The following suggestions may be helpful to you.

56.

When you plan your week, you should make a list of things that you have to do. Be sure to set aside enough time to complete the work that you are normally assigned each week. Of course, studying shouldn’t occupy all of your free time. Don’t forget to set aside enough time for entertainment, hobbies and relaxation.

57.

Look around the house for a good study area. Keep this space, which may be a desk or simply a corner of your room, free of everything, but study materials. No radio or television. When you sit to work, concentrate/focus on the subject.

58.

This means looking a passage over quickly but thoroughly before you begin to read it more carefully. Scanning a passage lets you preview the material and get a general idea of the content. Scanning will help you double your reading speed and improve your comprehension.

59.

Take advantage of class time to listen to everything the teacher says. Real listening in class means less work later. Taking notes will help you remember what the teacher says.

60.

When you get home from school, go over your notes. Review the important points that your teacher mentions and you will remember them longer.

Develop a good attitude about tests. The purpose of a test is to show what you have learned about a subject. Tests do more than just provide grades; they let you know what you need to study more, and they help to make your new knowledge permanent(长久的;永久的).

题型:判断题

女,18岁,诉胸骨后疼痛,气促,平卧刺激性咳嗽明显,坐位稍好转,MRI示"右上纵隔7cm×9cm肿块",拟行"纵隔肿瘤切除术"。

有关纵隔肿瘤的叙述哪些是正确的()。

A.胸腺瘤、畸胎瘤和神经源性肿瘤为纵隔肿瘤前三位

B.100%胸腺瘤患者有重症肌无力症状

C.大多数为良性,但可恶性变

D.纵隔镜检查可直接观察到肿瘤,明确其部位与表面情况

E.纵隔肿瘤主要行手术切除治疗

F.胸腺瘤的临床症状产生于对周围器官的压迫和肿瘤本身特有的症状——合并综合征

题型:判断题

建设工程施工合同中,在合同生效后,由于合同的价款不明,则按( )的市场价格履行。

A.工程所在地

B.施工单位所在地

C.建设单位所在地

D.签订合同所在地

题型:判断题

下列关于青花瓷器的表述,正确的是()。

A.产生于元代

B.瓷器画面呈现蓝色花纹

C.不含铅、镉等有毒元素,于人体健康无害

D.使中国瓷器从此进入了彩瓷时代

E.清代是青花瓷器发展最为重要的时期

题型:判断题

国家禁用的渔药有()

A.漂白粉

B.二氧化氯

C.大蒜

D.已烯雌酚

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