氧气瓶不能撞击，氧气不准用空，应保存（）MPa压力。

Hi, my name is Wang Jun. Do you want to know about my staying in America? Well, to tell you the truth, it is really an eye-opening experience here.

In China, I had English classes five times a week since Grade Five. But I didn’t know textbook English could be so different from everyday English until I came to Hotchkiss School, Connecticut. When I first studied English, I was told to say “I’m fine.” when people say “How are you?” But in the USA, I found that people say “I’m good.” or “I’m tired.”

One day, someone greeted （问候） me with “What’s up?” It made me confused. I thought for a moment and then smiled because I didn’t know what to say.

Since then, I have learnt more and more differences between Chinese and American cultures. To my surprise, American girls spend a lot of time in the burning sun getting a tan (晒黑的肤色). In China, girls try every possible way to keep their skin white.

American students are hard-working like Chinese students. In China, schoolwork is almost everything, so we study hard and that’s it. But here, a “good” student not only gets good grades, but also does a lot for the public. That is to say, they get lots of knowledge at school and learn many life skills from social （社会的） work.

小题1:In China, Wang Jun had _______ English classes every week.

A．five

B．four

C．three

D．two小题2:Wang Jun found that _______ when he came to Hotchkiss School in the USA.

A. it was really important to learn English well

B. English he learnt in China was helpful to him

C. American students were more hard-working than Chinese students

D. textbook English was different from everyday English

小题3:What does the underlined word “confused” mean in Chinese?

A．困惑的

B．滑稽的

C．紧张的

D．伤心的小题4:American girls make Wang Jun feel surprised because _______.

A．they work hard at school

B．they try to keep their skin white

C．they hope to get a tan

D．they do lots of social work小题5:Which of the following is the best title for the passage?

A．My wonderful travel in the USA

B．After-school activities in American schools

C．What American students learn at school

D．My study experience in the USA

学完了地理，旺旺绘制了一幅学校的平面图，读图回答小题

小题1:从学校前校门到后校门行走的方向大致是（   ）

A．先向西南再向北

B．先向东北再向南

C．先向南再向西北

D．先向北再向西北小题2:旺旺将这幅图送了一份给他的地理老师，但地理老师看后，说这幅图有一处明显的错误，这处错误是（   ）

A．比例尺应为1：30万

B．指向标错误

C．缺少经纬度

D．缺少图例

有甲、乙、丙三根用同种材料制成的导线，已知甲和乙粗细相同，但甲比乙长；乙和丙的长度相同，但乙比丙细。则三根导线中电阻最大的是[ ]

A ．甲

B ．乙

C ．丙

D ．无法判断

有一台正在运行中的气关阀，总是关不死，试说出至少五条可能的原因。

售后维修管理信息系统总体方案可行性分析包括技术可行性、经济可行性和（）。

A.政策可行性

B.营运可行性

C.资金可行性

D.人员可行性