求下面的未知数x。(1)x-4.5= 4.5(2)x-82=63(3)x+8.7

题型:计算题

问题:

求下面的未知数x。
(1)x-4.5= 4.5(2)x-82=63
(3)x+8.7= 41.9(4)7.5+x=21.5
考点:解方程
题型:计算题

阅读理解。

      An expensive car speeding down the main street of a small town was soon over-taken by a young motorcycle policeman. As he started to take out the ticket, the woman in the car said proudly. "Before you go any further, young man, I think you should know that the mayor of this city is a good friend of mine. "

     The officer did not say a word, but kept writing.

     "I am also a friend of Chief of Police Barnes,"continued the woman, getting angrier each moment.

     Still he kept on writing.

     "Young man," she said, "I know Judge Lawson and State Senator Patton. "

     Handing the ticket to the woman,the officer asked pleasantly. "Tell me, do you know Bill Bronson?"

     "No. Why?" she replied.

     " Well, this is the man you should have known," he said, going back to his motorcycle,"I am Bill Bronson. "

1.The policeman stopped the car because  ___  .

A. it was an expensive car

B. the driver was a proud lady

C. the driver was driving too fast

D. the driver was going to attack him

2. The woman was getting angrier each moment because  __   .

A. the policeman didn't know her friends

B. the policeman kept writing the ticket for her

C. the policeman refused to accept her offer of money

D. she didn't know the policeman's name

3. The woman driving the expensive car  __   .

A. failed to stop the policeman writing the ticket

B. warned the policeman not to move a step further

C. was surprised that the policeman did not know the mayor

D. told the policeman to stay where he was

4. The policeman was   __  .

A. an honest and fair fellow

B. a foolish and proud fellow

C. a silly and rude fellow

D. a kind-hearted fellow

5. The policeman   __ 

A. had no sense of humor

B. had a sense of humor

C. had no sense of duty

D. was playing a joke on the woman

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A.垂体性侏儒症

B.特发性垂体功能不全

C.继发性垂体功能不全

D.原发性垂体性侏儒

E.多发性垂体激素缺乏

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A.CaCO3与稀硝酸反应生成CO2,CaSO3也能与稀硝酸反应生成SO2

B.铜在氯气中剧烈燃烧生成二价铜,铜也能在硫蒸气中剧烈燃烧生成二价铜

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D.锌可以与溶液中的银离子发生置换反应,钠也能与溶液中的银离子发生置换反应

题型:计算题

1982年11月,江西省委、省政府提出要写好“田园诗”,画好“山水画”,以充分发挥()优势。

A.工业资源

B.林业资源

C.教育资源

D.农业资源

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