从花蕊的情况和花着生的情况两方面看，桃花的花属于( )
A．单性花单生花
B．两性花单生花
C．两性花花序
D．单性花花序
答案：B
题目分析：根据雌蕊和雄蕊的有无，花可以分为两性花和单性花．像桃花、百合花那样，在一朵花中同时具有雌蕊和雄蕊的花叫做两性花；像黄瓜花、南瓜花、杨花、柳花那样，在一朵花中只有雄蕊或者只有雌蕊的花叫做单性花；桃、百合、黄瓜等植物的花，每朵花都是单独着生在茎上，这样的花一般比较大，称为单生花．而向日葵、玉米、柳等植物的花，按照一定的次序着生在变形的花托即花轴上，形成了花序．所以，桃花既是两性花，又是单生花．
故选：B
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| God's Coffee A group of schoolmates who have left school for several years, highly established in their careers, got together to visit their old university professor. Conversation soon turned into 1 about stress in work and life. Offering his guests coffee, the professor went to the kitchen and 2 with a large pot of coffee and a variety of cups-porcelain, plastic, glass, crystal, some plain looking, some expensive, some graceful-telling them to 3 themselves to the coffee. When all the students had a cup of coffee in hand, the professor said. " 4 you noticed, 5 the nice looking expensive cups were 6 , leaving behind the 7 and cheap ones. 8 it is normal for you to want only the best for yourselves, that is the 9 of your problems and stress. Be assured that the cup itself adds no quality to the coffee. In most cases it is just more expensive and in some cases 10 hides what we drink. What all of you 11 wanted was coffee, not the cup, 12 you consciously 13 the best cups... And then you began 14 each other's cups. Now consider this: Life is the coffee; the jobs, money, and 15 in society are the cups. They are just tools to hold and contain life, and the type of cup we have does not define, nor change the 16 of life we live. Sometimes, by 17 only on the cup, we 18 to enjoy the coffee God has provided us." God brews the coffee, not the cups... Enjoy your coffee! "The 19 people don't have the best of everything. They just 20 the best of everything." Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God. | ||||
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