某班三个同学商议暑假去图书馆借书。小明说:“我每4天就去一次。”小华说:“我每6

题型:解答题

问题:

某班三个同学商议暑假去图书馆借书。小明说:“我每4天就去一次。”小华说:“我每6天去一次。”小红说:“我家路远,我每10天才能去一次,但我每次可多借几本。”如果三个人7月5日同时去图书馆借书,那么至少再过几天,他们三个人中有两人会在图书馆相遇?至少过多少天,他们三个人相遇在图书馆?

考点:最大公因数(最大公约数),最小公倍数
题型:解答题

阅读理解。

     Sara is fifteen years old. She is very careless (粗心的). So her parents often tell her to do or not to do

something.

     Today Sara comes home at 12:30. She finds a 100-dollar bill (钞票) on the table in her room.

     "Great!" she says to herself. "I am so happy because Mom gives me so much pocket money today." But she

finds there is a piece of paper (一张纸) under the bill.

     It says:

Dear daughter,

     Today is your grandmother's birthday. We'll go to visit your grandmother. Please stay at home. But don't

forget (忘记): this bill is not for you. I put it here to attract (吸引) you. Please put it on the table again after

you read the paper.

1. Sara is _____.

A. a tall girl

B. 14 years old

C. careful

D. a careless girl

2. The 100-dollar bill is _____.

A. on the table

B. in a bag

C. on the bed

D. in a box (盒子)

3. When Sara sees the bill, she thinks _____.

A. her grandmother gives it to her

B. her mother gives it to her

C. she can buy some clothes with it

D. it's her father's bill

4. Which of the following is NOT true about the paper?

A. It is under the bill.

B. It says that day is Sara's grandmother's birthday.

C. It can attract Sara.

D. It tells Sara to put back the bill.

5. After reading the paper, Sara may feel _____.

A. happy

B. disappointed (失望的)

C. fine

D. tired

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电子式车速里程表克服了机械式车速里程表用软轴传输转矩的缺点,但精度不高。()

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( )是人民警察政治素质、文明程度、精神风貌、纪律作风和战斗力的综合反映。

A.日常工作

B.警容风纪

C.内部关系

D.接待群众

题型:解答题

肺动脉瓣关闭不全的常见原因是()。

A.风湿热

B.肺动脉瓣狭窄

C.肺动脉高压

D.肺动脉栓塞

E.冠心病

题型:解答题

《海洋环境保护法》规定,船舶的下列哪项行为可处以警告或令其限期改正:().

A.未配备防污器材

B.不编制溢油应急计划

C.对所载货物不具备防污适运条件

D.A、B和C都是

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