以下函数将b字符串连接到a字符串的后面,并返回a中新字符串的长度。 strcen(

题型:填空题

问题:

以下函数将b字符串连接到a字符串的后面,并返回a中新字符串的长度。
strcen(char aC), char b[])
int num=0,n=0;
while(*(a+num)!= 【14】 ) num++;
while(b[n])*(a+num)=b[n]; num++; 【15】 ;)
return(num);

考点:计算机等级考试C语言二级C语言笔试
题型:填空题

在光滑的水平桌面上有一长L=2米的木板C,它的两端各有一块档板,C的质量mC=5千克,在C的正中央并排放着两个可视为质点的滑块A和B,质量分别为mA=1千克,mB=4千克。开始时,A、B、C都处于静止,并且A、B间夹有少量塑胶炸药,如图15-1所示。炸药爆炸使滑块A以6米/秒的速度水平向左滑动,如果A、B与C间的摩擦可忽略,两滑块中任一块与档板碰撞后都与挡板结合成一体,爆炸和碰撞所需时间都可忽略。

小题1:(1)当两滑块都与档板相碰撞后,板C的速度多大?

小题2:(2)到两个滑块都与档板碰撞为止,板的位移大小和方向如何?

题型:填空题

皮下出血面积的直径多大称为淤点().

A.<2mm

B.2~3mm

C.3~5mm

D.>5mm

E.以上均可

题型:填空题

判断下面的移项对不对.若不对,错在哪里?应当怎样改正?

(1)从7+x=13,得到x=13+7;

(2)从5x=4x+8,得到5x-4x=8.

题型:填空题

In the United States, friendships can be close, constant, intense, generous, and real, yet fade away in a short time if circumstances (环境) change. Neither side feels hurt by this. Both may exchange Christmas greeting for a year or two, perhaps a few letters for a while --- then no more. If the same two people meet again by chance, even years later, they pick up the friendship where it left off and are delighted.

In the States, you can feel free to visit people’s homes, share their holidays, enjoy their children and their lives without fear that you are taking on a lasting obligation. Do not hesitate to accept hospitality because you cannot give it in return. No one will expect you to do so for they know you are far from home. Americans will enjoy welcoming you and be pleased if you accept their hospitality easily.

Once you arrive there, the welcome will be full and warm and real. Most visitors find themselves readily invited into many homes there. In some countries it is considered inhospitable to entertain at home, offering what is felt as “merely” home cooked food, not “doing something” for your guest. It is felt that restaurant entertaining shows more respect and welcome. Or for various other reasons, such as crowded space, language difficulties, or family custom, outsiders are not invited into homes.

In the United States, both methods are used, but it is often considered more friendly to invite a person to one’s home than to go to a public place, except in purely business relationships. So, if your host or hostess brings you home, do not feel that you are being shown inferior (差的) treatment.

Don’t feel neglected (被忽视) if you do not find flowers awaiting you in your hotel room either. Flowers are very expensive there, hotel delivery (递送,投递) is uncertain, arrival times are delayed, changed, or canceled – so flowers are not customarily (通常) sent as a welcoming touch. Please do not feel unwanted! Outward signs vary in different lands; the inward welcome is what matters, and this will be real.

小题1:In the United States, you will find friendships __________ if circumstances change.

A.die suddenly

B.pass away

C.disappear gradually

D.last forever小题2:Americans _________ their foreign friends to make a return for their hospitality.

A.ask

B.wish

C.never allow

D.don’t expect小题3:In some other countries, giving a dinner party at home is considered _______ than in a restaurant.

A.less formal

B.less hospitable

C.more natural

D.more popular小题4:According to the passage, which of the following is NOT true?

A.Flowers are available at all time.

B.Flowers are expensive.

C.Flowers are signs of outward welcome.

D.Flowers are not necessarily sent to guests.小题5:Which of the following is the best title for this passage?

A.American Hospitality

B.American Friendships

C.American Invitation

D.American Welcome

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什么是油罐倾斜测量的钢丝悬垂法?

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