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单项选择题

梁柱纵向受力主筋不宜选用下列哪种钢筋？（　　）

A.HPB300
B.HRB400
C.HRB500
D.HRBF500
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收入和价格变化导致消费者均衡变化。如果在新的均衡状态下，各种商品的边际效用均低于原均衡状态，则（ ） A.
他的生活状况改善了 B.
他的生活状况恶化了 C.
他的生活状况没有发生变化 D.
不能判断
单项选择题
女，25岁，面色苍白，发热10天，皮肤上见多个紫红色片状改变，不凸出皮面，压之不褪色，直径约为6mm。应诊断为： A.
瘀点 B.
瘀斑 C.
血肿 D.
紫癜 E.
荨麻疹
单项选择题
George and Margaret and their children?21?at 140 Davis Street,22?the street from a small park.Their house is just off the main road.George usually goes to work by bus,but sometimes he goes?23?his car.The children usually go to school by bus.
The Glenns′house is?24?hidden among the trees.It has small bushes(灌木)planted around it.There is a fence?25 it and the house next door.It is a two-storey house,26 the living room,dining room andkitchen(厨房)on the first floor,and the bedrooms and bathroom on the second floor.
The Glenns spend a lot of time at home.27 now they are at dinner.Conversation(谈话)at the Glenns′house is usually lively at meal time.The children are discussing trips they would like to take.Susan,who has never?28?on a plane,says,"I′d like to?29 a plane to California."Henry,who is elder,thinks it would be fun to be on a?30,heading for adventure(冒险)in Africa.Teddy,the youngest child,says,"I want to go around the world on a train."His elder brother and sister are still trying to?31 to him why this is not possible?32?their mother says,"Children,you′ve spent too much time at the table.Henry and Susan,go and?33 your homework.Teddy,it′s time you were in bed."
Soon there is silence throughout the?34.Teddy is in bed,Susan and Henry are in their rooms studying,and Mr.and Mrs.Glenns are in their living room,35George is sitting in his favorite(最喜欢的)chair,reading the paper and Margaret is sitting on the sofa,doing some sewing.
第31题答案是查看材料
A.explain
B.say
C.tell
D.speak
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