据报道，我国国家图书馆浩瀚的馆藏古籍中，仅16万卷“敦煌遗书”就有5000余米长卷需

自然界中水循环的原动力是：

A．大气环流

B．地球引力

C．气候变暖

D．太阳辐射

如图所示，矩形线框abcd放置在水平面内，磁场方向与水平方向成α角，已知sin α＝4/5，回路面积为S，磁感应强度为B，则通过线框的磁通量为(  )

A．BS

B．4BS/5

C．3BS/5

D．3BS/4

患者男，41岁。胃溃疡行毕Ⅱ式胃大部切除术后第5天，出现上腹膨胀感和呕吐，呕吐物含大量胆汁。

正确的处理措施是（）

A.禁食

B.胃肠减压

C.全身支持治疗

D.观察4～6周，如症状不缓解，手术探查

E.以上都是

Passage 2

According to the passage, which is NOT tree about chronic diseases a. It is estimated that seventy-five percent of the people will die from chronic diseases after ten years. b. There are more people killed by chronic diseases in China than in the US. c. China will spend more than five hundred thousand yuan on the chronic diseases in the next ten years. d. Russia also suffers from economic losses because of chronic diseases.