简述我国现行土地使用制度的主要特点。

产生溶血反应的主要原因是（）.

A.严重的过敏反应所致

B.ABO血型不合

C.血液被细菌严重污染

D.输入低渗溶液

E.输入高渗溶液

初产妇，34岁，孕39周，规律宫缩2小时，宫口开大4cm，给予肌注缩宫素3u，宫缩持续不缓解，胎心率为90～100/分，缩复环上升达脐平，应考虑的诊断是( )

A．胎盘早剥

B．痉挛性子宫收缩

C．高张性宫缩乏力

D．先兆子宫破裂

E．子宫收缩过强

阅读理解

     Faced with a tough job market, fresh graduates are dreaming of running their own businesses instead.

But a recent survey has showed that such ambitions lack the required support and remain just that-dreams.

The Shanghai Municipal Employment Promotion Centre poll of 1,276 graduates in several universities and colleges in the city, released last Friday, showed 59.78 percent of respondents considered the possibility

of setting up a company or at least a small store. "But they just stop at the 'thinking stage'," it stated.

     Respondents put the top reasons for not going it alone down to a shortage of investment and a lack of

business opportunity. They also listed lack of business experience and social networks, the need for

advanced study and objections from family members as factors that stood in their way.

     More than 90 percent of the interviewees said they would rather take up a job after graduating and then consider starting their own business two or three years down the road.

Guo Bin, a senior student in Shanghai International Studies University majoring in English, decided he

wanted to be his own boss last year. But he is looking for a job first. "If I fail to find a satisfying job, I

would like to establish a company in exhibition services," Guo said.

     The Shanghai native has some relatives working in a local printing plant. With their help, Guo hopes to produce exhibition brochures at a relatively low price. He is also confident that his English language skills

can help him do well in the industry.

     "Social networking is an important factor leading to business success," Guo said.

     Guo said that the shortage of graduate jobs is the main reason driving more university students to set up a business right after their graduation.

    Jiang said the university sets up a business guide team made of government officials and prof essionals.

They regularly give training courses to students who show an interest in having their own business. The

parents of university graduates are more willing to help their children start up alone. The survey showed "

Once you win the support of your family, you have won half the battle," Guo added.

1. Which of the following can be the best title?

A. A tough job market

B. Graduates can only dream of being boss

C. The ambitions of fresh graduates

D. The story of Guo Bin

2. Which of the following is NOT true about stopping  fresh graduates realising their dreams of being boss?

A. The lack of business opportunity and investment.

B. The shortage of business experience.

C. Less skilled English language.

D. Their  family members' objections.

3. In the view of Guo Bin, what is the key factor that makes fresh graduates dream of being boss  soon

after graduation?

A. Their family don't support them.

B. Their social networking is not good.

C. There are not enough graduate jobs.

D. They want to achieve greater success.

4. Who is this article mostly intended for?

A. The parents whose child will graduate from university soon.

B. Those who will graduate from university.

C. Those who want to be boss.

D. The officials who work in the government.

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简要病史男性，62岁。主诉：腹痛隐痛3个月，停止排便、排气伴呕吐2天。请针对该案例，说明问诊内容与技巧。