读下图，回答1—3题。 1、下列叙述正确的是[ ] A、图中等高距为50米 B

根据中文意思完成句子（共10题，满分20分）。

小题1:With the improvement of the living standard, people are _____________ (过着幸福的生活)．

小题2:Don't ________________ (看不起) a student only because he has failed in an exam.

小题3:It ________________ (值得读) the newly­published book written by the famous writer.

小题4:________________ (多亏了) everyone's hard work, the performance was a great success.

小题5:We ________________ (对……满意) you and your classmates yesterday.

小题6:It is really a hot day.I ________________ (宁愿) stay in the house with air­conditioning ________________ (不愿) go out shopping.

小题7:Her shoes ________________ (需要修理了)．

小题8: Lisa is busy ________________ (准备) the coming exam.

小题9:Our products         _____ (出口) to Southeast Asia to gain more profit.

小题10:No matter what you do, _____            (一旦开始), you must continue.

引起成人自发性颅内蛛网膜下腔出血最常见的原因为

A．脑动静脉畸形破裂

B．颅内动脉瘤破裂

C．脑瘤卒中

D．抗凝治疗

E．血质不调

心绞痛病人，针灸基本治疗时选

A.内关、阴郄、膻中 

B.足三里、尺泽、内关 

C.中冲、内关、鱼际、列缺 

D.内关、少冲、心俞、合谷 

E.内关、中冲、少冲

为什么母题具有很强的滋生主题的能力？

简述包装标志的分类。