Within how many days did Cousins feel his pain decrease？

How many people recognized the man in the pictures within 2 days？

A．24 .

B．3

C．640

D．48

How many days a working American has to work within a week？

A．seven

B．six

C．five

f the monthly average (arithmetic mean) was 18.43 and the standard deviation was 0.27, how many days during this week did the closing price fall within two standard deviations from the average？

A．1

B．2

C．3

D．4

E．5

ys after departing the loading port. She will burn off about 45 tons/day and daily water consumption is 8 tons. How many tons may she load over that allowed by her？

A、A. 270

B、B. 278

C、C. 291

D、D. 318

听力原文： In the old days, fresh food had to be eaten in the city no more than one or two days after it left the farm. If kept longer, it would spoil. One of the reasons behind it is that the air contains many living things that can harm our food. Some things, such as insects, can be seen by us. Others, like bacteria, can be seen only with a microscope.

All living things need water and man discovered that if this water is removed, the activity of the bacteria which causes food to go bad is prevented. In other words, we can protect some of our food by drying it. Besides, living things can only grow at certain temperatures, so we can also protect our food by heating or cooling it.

A New York man had an idea. He filled a wooden railroad car with tons of butter. The car was hooked to a train and pulled from New York to Boston. How could this be done？ The butter was packed in ice, and twice during the trip more ice was added. This was the first refrigerator ear. As a matter of fact, People also used wooden boxes filled with ice to keep their food. Now we have mechanical refrigerator cars and mechanical refrigerators at home and stores and other places that need them.

(33)

A．Food had to be kept in the ice box.

B．Fresh food must be eaten within one or two days after being shipped from the fame.

C．Food must be delivered from the farm within one or two days.

D．Food must be kept in the places near the farm.

Please compare Letter A with Letter B, and comment on both of them. Then, revise your favorite one for effectiveness. Add any information if necessary. Letter A Dear Mr. Andrew Roach Thank you for your interest in our new products. We expect we will be able to let you have some bears if you can tell us how many you want. We will require at least 50% payment in advance and the rest within 30 days of delivery. Will this be okay with you？ We look forward to hearing from you. Yours sincerely Chris Masters Letter B Dear Mr. Andrew Roach Thank you for your interest in our exciting new product. We are sure that Tom Teddy Bear will prove to be a huge success in Spain. Perhaps you could let us have some idea of the stocks you would be able to hold at any one time and what quantity you expect to be able to sell in the first year. Please note that we require 50% payment in advance, for your first order, the remaining 50% payable 30 days after delivery. Future orders are subject to our normal credit terms. We are sending you sample of Tom Teddy Bear, so that you can investigate the market further. Yours sincerely Susanna Wang

A.Is there anytime requirement for registration?

B.How long will you receive your business license?

C.Is 30 days enough for you to send the goods to us?

How many days will the workshops last？

A．2 days

B．4 days

C．6 days

D．7 days

A.live

B.rest

C.sleep

D.stay

How many days a week is the shop open？

A．Five and half days a week.

B．Seven days a week.

C．Six and half days a week.