我国是一个统一的多民族国家，人数最多的少数民族是（ ） A．壮族 B．回族 C．

某患者夜间突发急腹症被送到某医院看急诊，初诊为急性胆囊炎。负责医生因自己年轻，怕担风险，未做任何处理，即让家属把患者送到20里外的中心医院就诊，延误了治疗时间，致使病人胆囊穿孔，中毒性休克。后虽经抢救挽救了生命，但医药费用去2万多元。

对该医生的行为进行伦理评价时，应该主要考虑的是其是否做到了（）

A.有利原则中的努力使患者受益的要求

B.有利原则中的努力预防难以避免的伤害

C.有利原则中的对利害全面权衡，选择受益最大伤害最小的行动方案

D.不伤害原则中的不应发生有意的伤害

E.不伤害原则中的不给患者造成本可避免的各种损害

Last year I had a wonderful experience. I went on a student exchange to Japan. It was an exciting time of my life and I       learned many things about the school system in Japan. I was in Grade 11, which is second year of high school in Japan, but I was younger than most of my classmates. That’s because Japanese children enter first year of elementary school (小学) in April following their sixth birthday. I started school when I was still five years old.

In Japan, Children attend elementary school for six years, where they study Japanese, arithmetic, science, social studies, music, crafts, physical education, and home economics (simple cooking and sewing skills). During their three years in middle school, English is added to this list. Most schools have access to computers and the Internet.

The classes in my school seemed rather big to me, around 30 students in a typical high school class. We ate lunch in the classroom, instead of a cafeteria and enjoyed a healthy, nutritious meal prepared by the school or by a local “school lunch centre” instead of eating the same, dry sandwiches every day. I really like the Japanese interpretation of school lunches. I also enjoyed the field trips and activities. At Japanese schools, there are many school events during the year, such as field day when students compete in tug-of-war, field trips, and arts and cultural festivals.

小题1:The writer went to Japan _____ last year.

A．to visit his family memebers

B．to finish his high school there

C．to study as an exchange student

D．to do research on school system in Japan小题2:Children in Japan may start their elementary school at the age of ____.

A．5

B．6

C．7

D．11小题3:Japanese students start to learn English _____.

A． before they start their school year

B．when they are in elementary school

C．when they are in middle school

D．when they are in high school小题4:In the writer’s country, there are normally _____ students in a high school class.

A．less than 30

B．exactly 30

C．more than 30

D．Not certain小题5: In the writer’s country, students probably _____.

A．have lunch in the classroom

B．have different lunch every day

C．have lunch at home

D．have sandwiches for lunch

放置在水平桌面上的玻璃瓶内装有酒精，求：液面下0.1米处酒精产生的压强．（ρ_酒精=0.8×10³千克/米³ ）

当事人约定由第三人向债权人履行债务的，下列说法中正确的是()。

A.第三人向债权人履行债务，必须征得债权人的同意

B.第三人向债权人履行债务，并不因此而成为合同的当事人

C.第三人向债权人履行债务，不得损害债权人的利益

D.第三人未向债权人履行债务的，应向债权人承担违约责任

E.第三人未向债权人履行债务的，债务人应向债权人承担违约责任

下图是在Linux系统中用Is命令查看文件信息的输出结果，可以判断命令行输入的完整命令是（1），当前目录的下级目录是（2），当前目录中的可执行文件是（3），当前用户是（4）。

空白（3）处应选择（）

A.mywork

B.myfork

C.fork

D.root