若变量已正确定义并赋值，以下符合C++语言语法的表达式是（ ）。A． a：=b+

Read and translate．小小翻译家。将下列句子译成汉语。

1. I will fly home to China next week.                                                                 

2. That's expensive.                                         

3. I want to buy a surprise for Li Ling.                                                       

4. We bought Christmas gifts.                                                   

5. Don't be late.                                           

During our two months on the road, Bennett and I had a really (1) experience with a good, honest (2) and some helpful mechanics.

We were driving east on Highway 10 when our "chick engine" light came on. We limped of a(n) (3) into Las Cruces. We had a real car (4) Bennett nursed the ear into a local garage. By this time the car was missing so (5) it was shaking all over. This was the (6) time to arrive at a garage—late Friday afternoon. Service adviser Scott was busy (7) paper work and customers as we (8) our problems. (9) he was already "ten cars behind", he told us to pull the car into the garage.

Lincoln, who we later (10) was one of the two motor technicians, took (11) of our car repairing. He and Scott and some other mechanics stayed several hours after closing, (12) the car.

Early the next morning (the shop was officially closed on Saturdays), Lincoln finally located the (13) and fixed it easily within only (14)

Later Scott (15) out to us that it was our attitude that helped. "You didn’t come into the place demanding this or that. You showed an (16) of our problems on a busy Friday afternoon. Customer’s attitude means a lot. " He was right in some way, customers should show (17) and understanding to people who (18) them. (19) people were extremely busy, they found way to at least try and help when they are met with politeness.

The pleasant experience I had shows that (20) for other people can always help.

7（）

A.at 

B.on 

C.with 

D.by

患者女，38岁。黏液脓血便伴里急后13年，大便成糊状，每日2～4次。近1周腹痛加重。体检：体温37.5℃，贫血貌，左下腹部轻压痛。X线检查示结肠袋消失，肠壁变硬，肠管缩短、变细，可呈铅管状。

最可能的诊断是（）

A.克罗恩病

B.结肠癌

C.肠易激综合征

D.溃疡性结肠炎

E.卵巢癌

受理投诉举报的工作人员必须忠于职守，连接高效，保守秘密。对由于（）的要严肃追究相关人员责任。