问题
选择题
“喻屯甜瓜“是济宁市的名优特产，其可食用部分是由下列哪部分发育来的？（ ）
A．子房
B．子房壁
C．胚珠
D．珠被
答案
绿色开花植物完成受精作用后，花的各部分发生了明显的变化：
甜瓜的可食用的部分是果皮，由子房壁发育而来．
故答案为：B．
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“喻屯甜瓜“是济宁市的名优特产，其可食用部分是由下列哪部分发育来的？（ ）
A．子房
B．子房壁
C．胚珠
D．珠被
绿色开花植物完成受精作用后，花的各部分发生了明显的变化：
甜瓜的可食用的部分是果皮，由子房壁发育而来．
故答案为：B．
| 阅读短文还原句子。 | |
| 阅读短文，从下列所给的五个句子中，选择四句还原到短文中，使短文意思通顺、结构完整。 | |
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| If you ask a teacher in China what makes a good student,he or she would probably tell you that a good student is someone who gets high marks in exams. It is true that most teachers share this opinion. 1 She says that as an educator,she feels sorry about what her students have to do every day. She hates to see her students study day and night for the endless exams. These teenagers have no time to relax or hang around with their f'riends. They shouldn't be tumed into bookworms. 2 Shen Hong thinks a good student should be like this: A good student is honest and kind to others. 3 lf hedoessomething wrong,he says sorry immediately, Apart from this,a good student is always ready to help his friends when they are in trouble. A good student is one who always tries his best in studies. He makes full use of his time to learn both in and out of class. Hard work comes first no matter how clever he is. 4 He often plays ball games,or goes camping with his friends. In a word,he develops in an all-round way. |