CBC is a well-known air company which has over twenty planes flying along 12 fixed lines all over the world.Its service is very good but some passengers are still not satisfied with it.That is why in 2007 and 2008 the company received letters of complaints（投訴） from consumers or passengers.They pointed out over a dozen kinds of problems which are divided into groups in the following table.Those about passengers' things that are carried by the plane are baggage problems.Customer service refers to service work passengers are not satisfied with.Over sales of seats are about the fact that more seats are sold and as a result the plane is too crowded to be safe.Refund（退款） problems appear when passengers fail to receive the money that should be paid back to them because of what they have lost.Fares are problems about the price of tickets.
Consumer Complaints Received by the CBCKinds 2007 2008
Flight problems 20% 22.1%
Baggage 18.3% 21.8%
Oversales of seats 10.5% 11.8%
Refund problem 10.1% 8.1%
Fares 6.4% 6.0%
Credit 1.0% 0.8%
Others 33.7% 29.4%
Total Number of complaints 3，001 1，830

（1）About how many complaints on Credit were received by the CBC in2007？

C

C

A．28.
B．29.
C．30.
D．31.
（2）What does the underlined word "fixed" mean？

A

A

A．set
B．repaired
C．separated
D．new
（3）Which white part shows both Flight problems and Baggage problems in 2007？

C

C

A．

B．

C．

D．

（4）What can we get from the passage？

B

B

A．Customers are quite satisfied with CBC.
B．Customers can only buy tickets with ready money.
C．Sometimes CBC sells more tickets than its plane's fixed seats.
D．CBC has more than twenty planes which fly to all the capital cities of the world.
（5）Where is this passage？

B

B

A．An ad.
B．A newspaper report.
C．A story.
D．A science diary.