学校里种植了品种繁多的月季花,某兴趣小组想让一株月季开出不同色彩的花,应该采用的

题型:选择题

问题:

学校里种植了品种繁多的月季花,某兴趣小组想让一株月季开出不同色彩的花,应该采用的技术是(  )

A.人工授粉

B.扦插

C.嫁接

D.组织培养

考点:植物的无性生殖
题型:选择题

在不考虑时间价值的前提下,投资回收期越短,投资风险就越小。 ( )

题型:选择题

某公司拟在城市规划区内建设一座面积为1万m2的综合楼。该项目经过市规划行政主管部门批准,取得了建设工程规划许可证,该公司委托一家甲级设计单位进行施工图设计,对原规划方案的总平面布局做了调整,增加了建设面积2500m2。该设计单位负责人几次向该公司催要相关部门的批准文件,但一直未得到。在该公司的再三催促下,该设计单位完成了施工图设计,两年后工程竣工,在工程竣工验收时,被城市规划行政主管部门认定为违法建设。
该项目为何被认定为违法建设请结合案情提出处理意见。

题型:选择题
阅读理解。
     Henry was a carpenter(木匠)of our village. Once I asked him to make a dining table for my wife. He
made it just the right size to fill the space between the two windows. When I arrived home that evening,
Henry was drinking a cup of tea and writing out his bill for his work..
     My wife said to me,quietly,"That,s his ninth cup of tea today."But she said loudly, "It's a beautiful table
,dear,isn't it?"
     "I won't decide about that until I see that bill." I said.
     Henry laughed and gave me his bill for the work. It said:
                                              BILL
One dining table                                             June 10,1995
Cost of wood                                                17.00
Paint(油漆)                                                   1.50
Work,8 hours(1 an hour)                                8.00
Total(总计)                                                   36.50
     When I was looking at the bill,Henry said,"it's been a fine day,hasn't it? Quite sunny."
     "Yes,"I said. "I'm glad it is only the 10th of June."
     "Me too,", said Henry. "You wait一it'll be a bit hotter by the end of the month."
     "Yes. Hotter一and more expensive. Dining tables will be 20 more expensive on June 30th,won't they,
Henry?"
     Henry looked hard at me for half a minute. There was a little smile in his two blue eyes. I gave his bill
back to him.
    "If it isn't too much trouble,Henry,"I said,"Please add it up again. You can forget the date."
    I paid him 26. 50 and he was happy to get it.
1. Why did Henry talk about weather when the writer was looking at the bill?  
A. Because it was a fine day indeed,  
B. Because he wanted the writer to look at the bill carefully.      
C. Because he wanted to tell the writer what the weather was like.
D. Because he didn't want the writer to go through the bill carefully.
2. Why did the writer say that dining tables would be 20 more expensive by the end of June?
A. Because he thought Henry would almost certainly add the date to the cost of the  dining table.    
B. Because it was difficult to make dining tables in hot weather.
C. Because paint would be more expensive.
D. Because the cost of wood would be more expensive.
3. The writer thought Henry would ask for______if he made a dining table on the last day of June.
A.26.50            
B. 56. 50        
C. 46.50          
D. 20.00
4.When the writer gave him the money,Henry was happy because_______.  
A. he got the money easily              
B. be didn,t have to add up the cost again
C. he got what he should get for his work  
D. he got much money for his work
5. From the story we know that_______.
A. Henry had written out the bill before the writer got home
B. Henry still wanted to get 36. 50 for his work in the end
C: Henry made a mistake in the bill
D. Henry tried to get more money for his work
题型:选择题

关于房间隔缺损的血流频谱,哪项不对()

A.应采用CW检测

B.显示为正向湍流频谱

C.始于收缩中晚期

D.持续全舒张期

E.分流速度在60~80cm/s以上

题型:选择题

铆合作业时,整个铆接工作应在发生()现象前结束。

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