下列不属于法律禁止的行为有[ ] A．公民乘飞机前，机场工作人员检查公民身份证和

下列有关流行性出血热低血压期血象变化的叙述，错误的是（）

A.白细胞总数增高

B.血小板减少

C.红细胞数减少

D.中性粒细胞增多

E.出现异型淋巴细胞

数据库管理系统通过数据定义语言DDL定义数据的模式、外模式和内模式，存放于

A．封锁表

B．数据字典

C．索引

D．日志

阅读理解。

     What do you want to be when you grow up? A teacher? A doctor? How about an ice-cream taster?

     Yes, there really is a job where you can get paid to taste ice cream. Just ask John Harrison, an "Official

Taste Tester" for the past 21 years. Testing helps manufacturers (生产者) to be sure of a product's quality.

During his career Harrison has been responsible for approving (批准, 同意) large quantities of the sweet ice

cream-as well as for developing over 75 flavors. (味道)

     Some people think that it would be easy to do this job; after all, you just have to like ice cream, right? No-

there's more to the job than that, says Harrison, who has a degree in chemistry. He points out that a dairy or

food-science degree would be very useful to someone wanting a career in this "cool" field.

     In the typical morning on the job, Harrison tastes and assesses (评估) 60 ice- cream samples (样品). He

lets the ice cream warm up to about 12 'F. Harrison explains, "You get more flavors from warmer ice cream,

which is why some kids like to stir it, creating ice-cream soup."

     While the ice cream warms up, Harrison looks over the samples and grades each one on its appearance.

"Testing begins with the eyes," he explains. He checks to see if the ice cream is attractive and asks himself,

"Does the product have the colour expected from that flavor?" Next it's time to taste!

     Continuing to think up new ideas, try out new flavors, and test samples from so many kinds of ice cream

each day keeps Harrison busy but happy-working at one cool job

1. What is John Harrison's job? [ ]

A. An official

B. An ice-cream taster

C. A chemist

D. An ice-cream manufacturer

2. According to John Harrison, to be qualified in the "cool field", it is helpful to _____.  [ ]

A. keep a diary out of work

B. have a degree in related subjects

C. have new ideas every day

D. find new flavors each day

3. What does Harrison do first when tasting ice cream?[ ]

A. he stirs the ice cream

B. he examines the colour of the ice cream

C. he tastes the flavor of the ice cream

D. he lets the ice cream warm up

4. Which of the following is probably the best title of the passage? [ ]

A. Tasting with Eyes

B. Flavors of Ice Cream

C. John Harrison's Life

D. One cool Job

简述吸痰术.

1923年，孙中山指派有蒋介石、王登云和 * * 党人张太雷组成的“（）”赴苏联考察军事、政治、党务，洽谈苏联援助问题。