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简述门静脉系与上、下腔静脉系之间的吻合部位和侧支循环途径。

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门静脉系与上、下腔静脉系之间存在着丰富的吻合，主要有：①通过食管静脉丛与上腔静脉系之间的吻合，其途径为门静脉→胃左静脉→食管静脉丛→奇静脉→上腔静脉。②通过直肠静脉丛与下腔静脉之间的吻合，其途径为门静脉→脾静脉→肠系膜下静脉→直肠上静脉→直肠静脉丛→直肠下静咏及肛门静脉→髂内静脉→髂总静脉→下腔静脉。③通过脐周静脉网与上、下腔静脉系之间的吻合

单项选择题

German Chancellor Angela Merkel won over German voters in the Federal Election on Sept. 27. Can she now be won over by a French charm offensive (1) at repairing the relationship that was once at the heart of Europe That’s the question being asked in Paris, (2) top government officials are (3) talking about their desire to rekindle closer ties (4) their neighbors across the Rhine. (5) the end of World War II the Franco-German relationship has been the motor of European integration, the (6) force behind the creation of the European Union and, more recently, the introduction of the euro. But the ardor has (7) in this decade, particularly under Merkel, who has regularly struggled to (8) her irritation with French President Nicolas Sarkozy’s grandstanding. Sarkozy, (9) , has often been impatient with what he (10) Merkel’s lack of resolve.

The sometimes (11) personal rapport is a long way from the public shows of affection their predecessors staged, particularly Helmut Kohl and FranCois Mitterrand, who movingly held (12) in 1984 in a Verdun cemetery. There’s been tension on (13) , too. Charles Grant, director of the London-based think tank Centre for European Reform, points out that France and Germany have been (14) on issues from how best to reflate their economies during the economic (15) to the smartest strategies for dealing with Russia.

But influential movers in France are now (16) to put the relationship back on a friendlier footing. In a recent paper French think tank Institute Montaigne (17) an ambitious agenda for the two nations, (18) that a new impetus is needed if Europe’s voice is to be heard in a world (19) of big new players, such as Brazil and India, and at a time when President Obama seems fax more (20) with China and the rest of Asia than with America’s traditional allies in Europe.

10（）

A.constructs

B.convinces

C.conceals

D.considers
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单项选择题

根据《消费者权益保护法》的有关规定，以下关于是否违反经营者义务的说法错误的是( )。

A．某超市为了制造气氛，在音像制品销售区用CD光盘、录像带等货品临时搭建成一圆锥形布置物，后两顽童在附近打闹，致使该布置物倒塌，其中一人被砸伤。该超市违反了经营者义务
B．某汽车经销商偶然发现其经营的某品牌汽车制动装置有严重问题，于是在其经营场所显著位置提醒消费者：“请您慎重选车!”该经销商违反了经营者义务
C．李某在住所附近一家小便利店买酱油一瓶，向店员索要购物小票，店员不提供购物小票，并解释说购物小票便利店需要保留。该便利店违反了经营者义务
D．某化妆品经销商在A商场租赁一柜台，李某从该处购买了化妆品，使用后引起皮肤红肿，李某要求A商场承担责任，该商场拒绝。该商场违反了经营者义务
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