单证制作题（共20分）根据给出的制作依据，缮制加工贸易业务批准证。上海申临实业有限公

阅读理解.

     Old John went to see a doctor . The doctor looked over him and said , "Medicine can't help you.

You must have a good rest. Go to a quiet place for a month , go to bed early , drink some milk , walk

a lot and smoke one cigar(雪茄) a day ". "Thank you very much," said old John . "I can do everything

you said."

A month later old John came to the doctor's office again. "Well," said the doctor, "I'm glad to see you.

You look much younger." "Oh, doctor ," said old John , "I feel quite well now. I had a good rest.  I

went to bed early.  I drank a lot of milk, and I walked a lot. Your advice certainly helped me . But

you asked me to smoke one cigar a day, and the one cigar a day nearly killed me at first. It's no joke

to start smoking at my age. "

1. The doctor ______ .

A. asked him to take some medicine

B. asked him not to take any medicine

C. didn't say any words about medicine

C. gave him some medicine

2. Old John ______ after a month .

A. didn't get well          

B. got better          

C. was young      

D. was old

3. When old John was back , he looked ______ .

A. young                    

B. old                  

C. younger          

D. older

4. Which of the following statements is true?

A. Old John smoked before.  

B. Old John hadn't smoked before

C. Old John didn't smoke one cigar a day

D. Old John smoked less than before

5. The best title of this passage should be ______ .

A. Old John                                            

B. Old John Is ill

C. The Doctor's Advice                            

D. The Doctor

酱油的总酸是酱油质量的一个指标，由于酸性物质种类多，测定结果规定是以什么酸表示（）。

A.乙酸

B.甲酸

C.乳酸

D.丙酸

E.柠檬酸

经济周期性波动，通常是由( )引起的。

A．总供给
B．总需求的变动
C．贸易顺差
D．贸易逆差

设其中

.

(Ⅰ)选取参数λ，使得

在区域D=(x，y)|y＞0内与路径无关；

(Ⅱ)选取参数λ，使得Pdx+Qdy在D上存在原函数并求出全体原函数.