原子电离后成为电子和() A.正离子 B.负离子 C.中子 D.离子

题型:单项选择题

问题:

原子电离后成为电子和()

A.正离子

B.负离子

C.中子

D.离子

考点:高级电焊工考试高级电焊工考试题库
题型:单项选择题

与亚急性甲状腺炎发病有关的是()

A.TSAb

B.TBⅡ

C.TGI

D.结肠炎耶尔森菌

E.病毒感染

题型:单项选择题

男性,45岁,因急性肠梗阻开腹探查,发现小肠肿物致部分小肠扭转。选择治疗的方法是()

A.肠粘连松解术或肠扭转、肠套叠复位术

B.肠切除吻合术

C.短路手术

D.肠造口术

E.肠外置术

题型:单项选择题

“七恶”中,症见“皮肤枯槁,痰多音喑,呼吸喘急,鼻翼煽动”者,称为()。

A.心恶

B.肝恶

C.脾恶

D.肺恶

E.气血衰竭

题型:单项选择题

阅读理解。

     It's you and I who are to blame for the state of the earth. No question about it. It's our life-style that is

threatening life on Earth, so we must make the changes. The good news is that many of those changes are

really quite simple, even enjoyable, but for every careful step we take as individuals, we must press

government and industry to take a big step on our benefit. And we must start now. Tomorrow's too late.

     My aim this year is to persuade as many of my friends and colleagues as possible to choose the train,

and leave their cars behind too. My gardens have been pesticide (杀虫剂)-free zones for years and I enjoy

seeing more wildlife on my doorstep as a result; I've tried to reduce my contribution to water pollution too,

by using environment-friendly, phosphate (磷)-free washing powder, and by no longer thinking of the toilet

as a suitable waste-disposal (处理) point.

     I ran after a young lady through town recently to give her back the piece of paper she had carelessly

thrown away. She disappeared into a shop, and when I followed her inside and made my presentation, she

was doubly embarrassed-she worked there, and the boss gave her a ticking-off too. I've started asking

fellow drivers at gas stations why they aren't using unleaded (无铅的) petrol. These are small things, but

we have to start somewhere, and every little does help.

1. To help the environment, the author is trying to do everything mentioned below EXCEPT _____. [ ]

A. taking the train instead of a car

B. throwing away the old cars

C. avoiding the use of pesticides

D. running after those who throw articles carelessly

2. The author ran after a woman through town because he wanted _____.[ ]

A. to find out where she worked

B. to give her back the piece of paper she had lost

C. to tell her not to throw away pieces of paper carelessly

D. to ask her to pay him for picking up the piece of paper.

3. The word "ticking-off" in the last paragraph probably means _____. [ ]

A. blaming

B. a piece of paper

C. prize

D. ticket

4. The purpose of this passage is to _____. [ ]

A. persuade his friends to take the train

B. inform us of the good news

C. make clear who is responsible for the environment

D. try to advise us all to protect our environment

题型:单项选择题

甲:“从举办奥运会的巨额耗费来看,观看现场奥运会比赛的票额应该要高得多。是奥运会主办者的广告收入降低了每份票额的单价,因此,奥运会的现场观众从奥运会拉的广告中获得了经济利益。”乙:“你的说法不能成立。谁来支付那些看来导致奥运会票额降价的广告费用到头来仍是消费者,包括作为奥运会现场观众的消费者。因为厂家通过提高商品的价格把广告费用分摊到了消费者的身上。”

以下哪项如果为真,则能够有力地削弱乙对甲的反驳?()

A.奥运会的票价一般要远高于普通体育比赛的票价

B.近年来,利用世界性体育比赛做广告的厂家越来越多,广告费用也越来越高

C.奥运会的举办带有越来越浓的商业色彩,引起了普遍的不满

D.总体上说。各厂家的广告支出是一个常量,有选择地采取广播、电视、报纸、杂志、广告牌、邮递印刷品等各种形式

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