右侧标志表示前方路段解除时速40公里限制。

John was a bookseller. He didn’t like paying for anything. One day he let a big box of books fall on his foot. “Go to the doctor,” said his wife. “No,” he said, “I’ll wait until the doctor comes into the shop next time. Then I’ll ask about my foot. If I go to see him, I’ll have to pay him.”

The next day the doctor came into the shop and bought some books. When John was getting them ready, he told the doctor about his bad foot . The doctor looked at it. “Yes,” said the doctor, “you must put that foot in hot water every night.” “Thank you,” said the bookseller, “and now sir, here are your books.” “How much?” said the doctor. “Two pounds,” answered John. “Good,” said the doctor. “I shall not have to pay you anything.” “Why?” asked John in surprise. “I told you about your foot . I want two pounds for that . Good-bye.”

(   ) 1. What was John? He was ______.

A. a doctor        B. a shop assistant        C. a bookseller        D. a farmer

(   ) 2. John hurt his foot because ______.

A. he didn’t like paying anything               B. a big box of books fell on his foot

C. he wanted to ask the doctor about his foot      D. a box of food fell on his foot

(   ) 3. ______ told him to go to the doctor.

A. His wife        B. A man              C. Nobody         D. His friend

(   ) 4. When the doctor came the next day, he ______.

A. bought nothing                   B. didn’t give John any advice on his foot  

C. bought some books                 D. told John to go to hospital

(   ) 5. At last the doctor paid ______ for his books.

A. two pounds      B. nothing     C. less than two pounds     D. a little money

具有中枢兴奋作用的药物是（）

A.麻黄

B.桂枝

C.柴胡

D.细辛

E.葛根

治疗甲状舌管囊肿及瘘管的有效方法是（）。

A.硬化剂注射

B.手术治疗

C.激光治疗

D.放射治疗

E.以上均可

J1字节失配会产生（）告警。

A、HP-SLM

B、HP-UNEQ

C、HP-TIM

D、HP-AIS

109型分配阀中紧急增压阀的动作，是靠下面哪二个部件的压力差来控制的（）

A、列车管与容积室

B、列车管与局减室

C、列车管与工作风缸

D、列车管与作用室