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问题 单项选择题 A3型题

某多层钢筋混凝土框架结构房屋，其中间层某根框架角柱为双向偏心受压柱，其截面尺寸b×h＝500mm×500mm．柱计算长度ι＝4.5m，柱净高H＝3．0m。选用C30混凝土，纵向钢筋用HRB400级、箍筋用HPB300级钢筋（f＝270N／mm），柱截面配筋如图8-4所示。在荷载效应基本组合下考虑二阶效应后的截面控制内力设计值：M＝166kN·m，M＝98kN·m，N＝243kN。结构安全等级二级。取a＝a＝45mm。

该柱偏心受压承载力设计值N（kN），与下列何项数值最为接近？（）

A.440

B.480

C.510

D.560

答案

参考答案：D

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.

9（）

A. on the whole

B. in turn

C. on the other hand

D. on the contrary
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单项选择题

下列气缸缸盖裂纹可用粘补、焊补等方法修复的是（）。

A.裂纹宽度不超过0.5mm

B.火花塞孔裂纹不超过第一圈螺纹

C.A和B都行

D.二者都不行
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