简述如何测试分布式系统。

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                                                        VISIT THE EAST GARDEN ZOO

      Come and see the new polar bears from Canada. The pandas are waiting to meet you, and the dolphins are

waiting to swim for you. The cranes are waiting to sing for you and the mynahs are waiting to say hello to you.

The snakes are waiting to dance for you.

Tickets Adults: $4               children: Over 12   $2          Under 12   $1

Opening Time: 9:00-16:00 on weekdays          9:30-17:00 at weekends

KEEP THE ZOO CLEAN!          DO NOT FEED THE ANIMALS

1. Where do the polar bears come from? [ ]

A. They come from China

B. They come from England

C. They come from the USA.

D. They come from Canada.

2. When can you visit the zoo? [ ]

A. At 4:30 in the afternoon on Saturdays.

B. At 8:30 in the morning on Wednesday.

C. At 9:00 in the evening on Mondays.

D. At 9:00 in the morning on Sundays.

3. You may not know the word "mynah", but you can guess it is good at ______. [ ]

A. singing

B. dancing

C. speaking

D. listening

4. What should a visitor do in the East Garden Zoo? [ ]

A. Play with the animals.

B. Leave no litter.

C. Feed the animals.

D. Go near the animals.

5. Mrs. Smith wants to take her 4-year-old son and 10-year-old daughter to the zoo. How much should she pay? [ ]

A. $4

B. $6

C. $7

D. $8

将价值200元的甲原料与价值480元的乙原料配成一种新原料．若新原料每千克的售价分别比甲、乙原料每千克的售价少3元和多1元，则新原料的售价是( )．

A．15元

B．16元

C．17元

D．18己

E．19元

下列关于贷款抵押额度，错误的表述是（）。

A.抵押人担保的债权不得超出其抵押物的价值

B.抵押贷款额度=抵押物评估价值×抵押贷款率

C.再次抵押的财产的价值余额不能超出所担保的债权

D.抵押财产价值高于所担保债权的余额部分不可以再次抵押

肾综合征出血热（流行性出血热）的治疗正确的有（）

A.早期确诊出血热就应限制液体入量

B.休克期的扩容原则是快速输入各类晶体液和胶体液

C.休克期宜早期使用血管活性药物

D.少尿期应限制液体入量，一般是前一天的出量加500～700ml

E.休克期如发生少尿，应尽早静脉注射呋塞米

白头翁汤的功用为（）。