甲从1、2、3中抽取一个数，记为a；乙从1、2、3、4中抽取一数，记为b，规定当a＞b或者a+1＜b时甲获胜，则甲取胜的概率为（）

A.1/6

B.1/4

C.1/3

D.5/12

E.1/2

如甲公司年终奖总额增加25%，乙公司年终奖减少10%，两者相等，则能确定两公司的员工人数之比（）

（1）甲公司的人均年终奖与乙公司相同

（2）两公司的员工数之比与两公司年终奖总额之比相等

A.条件（1）充分，但条件（2）不充分。

B.条件（2）充分，但条件（1）不充分。

C.条件（1）和条件（2）单独都不充分，但条件（1）和条件（2）联合起来充分。

D.条件（1）充分，条件（2）也充分。

E.条件（1）和条件（2）单独都不充分，条件（1）和条件（2）联合起来也不充分。

Most people would define optimism as endlessly happy, with a glass that’s perpetually half fall. But that’s exactly the kind of false deerfulness that positive psychologists wouldn’t recommend. “Healthy optimists means being in touch with reality.” says Tal Ben-Shahar, a Harvard professor, According to Ben- Shalar,realistic optimists are these who make the best of things that happen, but not those who believe everything happens for the best.

Ben-Shalar uses three optimistic exercisers. When he feels down-sag, after giving a bad lecture-he grants himself permission to be human. He reminds himself that mot every lecture can be a Nobel winner; some will be less effective than others. Next is reconstruction, He analyzes the weak lecture, leaning lessons, for the future about what works and what doesn’t. Finally, there is perspective, which involves acknowledging that in the ground scheme of life, one lecture really doesn’t matter.

Direerions:

Suppose your university is going to host a summer camp for high school students. Write a notice to

1)briefly introduce the camp activities, and

2)call for volunteers.

You should write about 100 words on the ANSWER SHEET.

Do not use your name or the name of your university.

Do not write your address.

Directions:

Write an essay based on the following chart. In your writing, your should

1)interpret the chart, and

2)give your comment.

You should write about 150 words on the ANSWER SHEET.

根据下述材料，写一篇700字左右的论说文，题目自拟。

有人说机器人的使命，应该是帮助人类做那些人类做不了的事，而不是代替人类。技术变革会夺取一些人低端繁琐的工作岗位，最终也会创造更高端更人性化的就业机会。例如，历史上铁路的出现抢去了很多挑夫的工作，但是又增加了千百万的铁路工人。人工智能也是一种技术变革，人工智能也将促进人类社会的发展，有人则不以为然。