在胚的结构中既能储存营养物质，又能转运营养物质的结构是______．_爱下问搜题

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问题填空题

在胚的结构中既能储存营养物质，又能转运营养物质的结构是______．

答案

双子叶植物种子由种皮和胚两部分组成，胚由胚芽、胚根、胚轴和两片肥大的子叶组成，子叶中储存有丰富的营养物质，且能把营养物质转运到胚芽、胚轴、胚根；单子叶植物种子由种皮、胚和胚乳三部分组成，胚由胚芽胚轴胚根和一片子叶组成，胚乳是贮存养料的结构．

故答案为：子叶

选择题

选择对应的图片。

( ) 1. hospital	A.
( ) 2. library	B.
( ) 3. bookstore	C.

完形填空

Mr. Young has a big shop in the center of the city. He tells all his employees to be to the buyers and he gets a lot of .

This morning a young man came to his      . He asked, "Do you smoke, sir?" "No, sir," answered the young man.
"Do you       ?" "No, sir."
Mr. Young asked him the other questions, and the young man's       satisfied him. Before he employed him, he asked him the last question, "You have        shortcoming, do you?" "No, I don't, sir. " said the young man. "I only like telling lies.”