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问题 单项选择题

总体说，我国的投资模式在相当大的程度上，仍然以( )这种资源高投入、高消耗为基本特征的投资为主。

A．开放式扩张
B．粗放式扩张
C．集约式扩张
D．组合式扩张

答案

参考答案：C

完形填空

根据下列短文内容，在短文后的空格处填上一个恰当的词，使短文完整、通顺。

Fire is important in our lives but it can also be very dangerous sometimes. Here are some tips for you when a fire happens.

When you smell smoke or see fire,   小题1:  “Fire!” as loudly as you can. Get help from your parents or call 119.Tell 119  小题2: you are and what is on fire. Listen to 119’s instructions. Never try to put out a fire by  小题3:,even if it’s a small one.

Get out of the room as   小题4:  as possible. Don’t try to take anything with you. A fire can become very dangerous in a few seconds. If there is a lot of smoke in your room, keep your head and body close   小题5: the floor. There is less smoke lower down, so it’s easier to breathe and see where you are going. Test the door   小题6: you open it. If it’s too hot, do not open it. Try to find a different way out.  小题7:  use the lift during a fire. Always use the stairs. A lift may stop working. Don’t go back to the burning house for your pet or anything else you have left behind. The pet animals can often get out of the room on their own before you do.

What if you can’t get out of your room? Close the door and put a quilt (被子) at the foot of the door. It can stop the   小题8: from coming in. Open the window and shout for help. Let people know that you are still inside the building. Don’t stay   小题9:  the bed. It’s hard for others to find you. So stay by the window on the floor. Keep these tips in mind, they will be  小题10:if you are caught in a fire.
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单项选择题

某钢筋混凝土框架结构办公楼，柱距均为8.4m。由于两侧结构层高相差较大且有错层，设计时拟设置防震缝，并在缝两侧设置抗撞墙，如图1-1所示。已知：该房屋抗震设防类别为丙类，抗震设防烈度为8度，建筑场地类别为Ⅱ类，建筑安全等级为二级。A栋房屋高度为21m，B栋房屋高度为27m。


已知：B栋底层边柱KZ3截面及配筋示意如图1-2所示，考虑地震作用组合的柱轴压力设计值N=4120kN，该柱剪跨比λ=2.5，该柱混凝土强度等级为C40，箍筋采用HPB235级钢筋，纵向受力钢筋的混凝土保护层厚度c=30mm。如仅从抗震构造措施方面考虑，试问，该柱选用下列何项箍筋配置(复合箍)最为恰当


提示：按《建筑抗震设计规范》(GB 50011—2010)作答。为简化计算，扣除重叠部分箍筋。
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