图中悬崖的相对高度可能为（ ） A．40米 B．80米 C．160米 D．320

When I was growing up in America, I was ashamed of my mother’s Chinese English. Because of her English, she was often treated unfairly. People in department stores, at banks, and at restaurants did not take her seriously, pretended（假装） not to understand her, or even acted as if they did not hear her.

My mother has realized the disadvantages of her English as well. When I was fifteen, she used to have me call people on phone to pretend I was she. I was forced to ask for information or even to yell at people who had been rude to her. One time I had to call her stockbroker（股票经纪人）. I said in a voice that was not very convincing, “This is Mrs. Tan.” And my mother was standing beside me, whispering loudly, “Why he doesn’t send me the check. It’s already two weeks late.”

And then, in perfect English I said: “I’m getting rather anxious .You agreed to send the check two weeks ago, but it hasn’t arrived.” Then she talked more loudly. “What does he want? I’ll come to New York and say it in front of his boss.” And so I turned to the stockbroker again, “I can’t accept any more excuses. If I don’t receive the check immediately, I have to speak to your manager when I am in New York next week.”

The next week we ended up in New York. While I was sitting there red-faced, my mother, the real Mrs. Tan, was shouting to his boss in her broken English. When I was a teenager, my mother’s broken English embarrassed (使困窘) me. But now, I see it differently. To me, my mother’s English is perfectly clear, perfectly natural. It is my mother tongue. Her language, as I hear it, is clear and direct. It was the language that helped me form the way I saw things, expressed ideas, and made sense of the world.

小题1:Why was the author’s mother poorly treated?

A．She was unable to speak good English.

B．She was often misunderstood.

C．She was not clearly heard.

D．She was not very polite.小题2:From Paragraph 2, what can we know about the author?

A．She was good at pretending.

B．She was rude to the stockbroker.

C．She was ready to help her mother.

D．She was unwilling to phone for her mother.小题3:Even after the author made the phone call to the stockbroker,__________.

A．they forgave the stockbroker

B．they failed to get the check

C．they moved to New York immediately

D．they wrote to their boss at once小题4:What does the author think of her mother’s English now?

A．It’s hard for her to understand.

B．It embarrasses her.

C．It helps her understand the world.

D．It helps her forgive rude people.

用手握住绳的两端，在绳的中点悬挂一重物，改变两绳间的夹角，物体始终处于静止平衡状态。则当     时，绳中的拉力最小；当     时，绳中的拉力大小等于重力；在角增大的过程中，绳中的拉力逐渐变      。

请完成下列Java程序。程序的功能是对数组进行冒泡排序。冒泡排序算法的基本思路是把当前数据序列中的各相邻数据两两比较，发现任何一对数据间不符合要求的升序或降序关系则立即调换他们的顺序，从而保证相邻数据间符合升序或降序的关系。本题是进行升序排列。例如数组a[]={30，1，-9，70，25}则排序后为{-9 1 25 30 70}。

注意：请勿改动main()主方法和其他已有的语句内容，仅在下划线处填入适当的语句。 public class BubbleSort{ public static void main(String args[ ]){ int i,j; int a[ ]={30,1,-9,70,25}; int n=a.length; System. out. print("排序前数组为:"); for(i=0;i＜n;i++)System.out.print(a[i]+ " "); System.out.println(); for(i=1;i＜n;i++)for(j=0;______________J++)if(a[j]＞a[j+1]) {int temp=a[j];______________a[j+1] =temp; } System. out. print("排序后数组为:"); for(i=0;i＜n;i++)System. out .print (a [i]+ " "); } }

汽车空调制冷系统的工质偏少会造成（）。

一患者，体温骤升至39℃，持续4天后骤降至正常水平，发热与体温正常各持续4～5天即交替一次，应考虑的疾病是（）

A.败血症

B.疟疾

C.周期热

D.伤寒

E.重症肺结核