问题
选择题
将带叶的树枝下端插入红墨水中，过一会儿把枝条纵切，被染红的部分是：
A．筛管
B．导管
C．形成层
D．茎的全部
答案
答案：B
因为导管是运输水分和无机盐的结构，所以被红墨水染红的部分是导管。
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将带叶的树枝下端插入红墨水中，过一会儿把枝条纵切，被染红的部分是：
A．筛管
B．导管
C．形成层
D．茎的全部
答案：B
因为导管是运输水分和无机盐的结构，所以被红墨水染红的部分是导管。
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| There was a man. His name was Ankit. He loved to 1 pictures. One day he drew a picture. It was 2 beautiful that he wished the picture to come alive. Ankit was 3 . He had few friends. He was always lonely (孤独的), but sometimes he wanted to 4 others. One morning, when he got up, he 5 someone talk. "Oh! It is talking! My wish comes true. " He was very 6 . Then he drew a man and a violin 7 the picture. The man could talk and play the 8 . All the people in the town knew the magic (有魔力的) picture soon. One evening a thief came to steal (偷窃) the picture. 9 he came near the picture , it cried, "Help! Help!" The thief ran away. After that Ankit always kept the picture well in his 10 . They livedhappily. Ankit was not lonely any more.
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