什么是“九二共识”？

关于急性快速失液下列说法错误的是（）

A.急性快速失液中枢神经及心血管症状很晚出现，组织体征要24h后显现

B.中枢神经症状与巴比妥类中毒相似，轻度容量不足时容易被忽略

C.皮肤充盈度在年老及近期体重下降患者中难以判断，无其他证据时无诊断价值

D.严重容量不足可抑制全身各系统，并妨碍临床判断

E.腹膜炎引起严重败血症患者，体温白细胞计数均可正常，腹部可无明显体征

Dear editor,

I am Paul , a senior English teacher in Linchuan No. 1 Middle School in Jiangxi Province , China. This letter is written to ask for your opinion.

The other day, I met with a multiple - choice exercise. We teachers argued heatedly with each other over its answer. Unfortunately, neither side could convince the other. The sentence is to be attached at the end of the letter. There is no doubt that the reference answer C is correct. But I don’t  think it is the only answer. Personally, I do think A is also a reasonable choice in sense as well as in grammar, if the case is treated from another aspect.                                

What puzzles me is why we should deal with so many multiple - choice exercises with not rigorous（严谨的）enough reference keys. But being a teacher, it’s very important and necessary to make it clear to students which answer is correct, which is more appropriate, and which is the best one. Regrettably, Multiple - choice test, which is a bit old - fashioned in western countries, seems to be quite popular and covers a rather high percentage in all sorts of English tests in China, especially in NMET.

Personally speaking, I don’t think multiple - choice test form making up more than 75 percent of the total scores in college entrance examination is a very good and effective testing method. Instead, more subjective testing forms depending on one’s own thinking and his ability to use the language like key words falling, question answering, paragraph or passage summarizing, English - Chinese or Chinese - English inter - translation, etc. should be applied to English proficiency tests. Through the test forms mentioned above, students’ ability to use the language will be better developed. Consequently, more advanced and outstanding English learners could be picked out. In fact, a test paper focusing on multiple - choice test influences, in a sense, students to form their own language thinking, which hinders（阻碍）the development of their language ability as well. Do you think so?

I am looking forward to your authoritative opinion. Thanks.

Yours sincerely,

Paul Liao

小题1:.

. What can be learnt from the letter is that the writer ________.

A．writes to argue with the editor over China’s present test system

B．thinks the reference answer to the sentence is completely wrong

C．thinks subjective test forms constitute a rather high percentage in NMET

D．doesn’t think highly of China’s present English proficiency test forms小题2:.

. In order to better develop students’ ability to use English, the writer suggests ________.

A．dealing with more multiple - choice exercises

B．laying stress on the practice of subjective exercises

C．arguing hotly with teachers over reference answers

D．considering a problem from different aspects小题3:.

Which of the following does NOT belong to subjective exercises in English learning?

A．Keeping a diary.

B．Summarizing a paragraph.

C．Copying a test.

D．Translating a passage.小题4:.

The writer seems to feel ________ as to the future development of students’ language ability.

A．concerned

B．curious

C．confused

D．satisfied

现代文明礼仪要求迎送客户时应该（）

A、行鞠躬礼

B、起立

C、问好

D、摆手道别

对于现场交货的设备，一般由( )在现场组装、调试、试运行。

A．业主

B．分包商

C．制造商

D．监理工程师

阴极发射电子经聚焦后在阳极靶面上的实际撞击面积称为实际焦点。有效焦点是指实际焦点在空间各个方向上的投影，是用来成像的X线面积。实际焦点在垂直于X线管窗口方向(过窗口中心)的投影称作标称焦点或有效焦点的标称值。

关于实际焦点叙述不正确的是

A．是电子实际撞击的面积
B．由主焦点和副焦点组成
C．聚焦槽与灯丝位置对焦点的形成有重要影响
D．副焦点大于主焦点时成像性能好
E．灯丝正面发射的电子形成主焦点