属于侵人犯规的是（） A.击中对方禁击部位 B.消极搂抱对方 C.处于不利时要求暂停

做“测定匀变速直线运动的加速度”实验中，得到一条如图所示的纸带．按时间顺序取0、1、2、3、4、5、6共七个计数点，每相邻两点间各有四个打出的点未画出，用刻度尺测出1、2、…6各点到0点的距离分别为8.69cm，15.99cm，21.87cm，26.35cm，29.45cm，31.17cm，打点计时器使用的交流电源频率为50Hz．求：

（1）物体的加速度

（2）打计数点3时的速度（要求写出主要的运算步骤）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Laughter and tears are part of living. But do you find enough time for laughter? I am not

asking if you experience lots of good times. Of course we should laugh during the happy times.

1  

Erma Bombeck is known for her humorous books, but she wrote one that covered a more

serious topic: cancer in children. Erma talks with lots of children with cancer and learns an important life lesson from them.   2  

She tells the experience of 15-year-old Jessica from Burlington, VT. Jessica’s leg was amputated (锯掉) at the knee because of cancer. Jessica tells about playing soccer. She kicked the ball hard and it flew off in one direction while her artificial leg flew another way. Then “the tall, pretty person that I am,” she said, “sat on the floor in laughter.”

Jessica may not have laughed about her cancer, but she laughed about dealing with its results.  3  

Then there is the story of 17-year-old Betsy. She made her way to the radiation room(放射室) for

her regular radiation therapy. As usual, she dropped her hospital coat and, wearing only her birthday suit, climbed onto the table and waited. After a couple of moments she began to realize something disturbing: the extra people in the room were not the medical students she had thought, but rather painters giving an estimate on painting!    4  And like Jessica, her ability to laugh helped her to deal with one of the most difficult things a young person can endure(忍受) — cancer.

There is a time to weep and a time to laugh.    5   And you’ll smile at the end.

A．She was learning to wear an artificial leg.

B．And her laughter helped her cope.

C．You would be happy if you find reasons to laugh.

D．Betsy laughed heartily about the incident.E. But do you also laugh during the difficult times?

F. If you can laugh even when the going gets rough, you’ll make it.

G. She learns that all cancer survivors prefer to laugh.

根据Miller和日本塚本氏的分类，全球分为七个气候区，分别对应哪几类花卉？

员工参与的方式有劳资协商、共同管理、自我管理及（）。

A.集体谈判

B.三方协商

C.获得资讯

D.参加工会

在飞机上，受危险品污染的物品应当作（）处理。

A.危险品

B.废品

C.正常使用物品

D.航材