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绿色开花植物体的六大器官中，吸收水分和无机盐的主要器官是______；进行光合作用的主要器官是______；发育成果实和种子的器官是______．
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【简答题】四、 Complete the passage with the best answers. Last summer, I went to Hainan with my family. The 1 was pleasant! The sky was blue, more than I could describe; the sea was blue and bright, more than I ...
【简答题】Last summer,I went to Hainan with my family.The 1 was pleasant!The sky was blue,more than I could describe;the sea was blue and bright,more than I could believe. 2 by the sea is just like being in the...
【单选题】Oil refiners can refine a barrel of petroleum so that it yields either more home heating oil or more diesel fuel. If the price of diesel fuel falls, there is
A.
an increase in the supply of home heating oil.
B.
a decrease in the supply of home heating oil.
C.
an increase in the quantity of home heating oil supplied.
D.
a decrease in the quantity of home heating oil supplied.
E.
an increase in the demand for home heating oil.
【简答题】During the last thirty years, the (1) ________ of the world has increased sharply, so it is the same with the (2) ________. Global warming is an (3) ________ serious problem facing the world today. As...
【简答题】蜡疗的主要治疗方法有 ___________ 、 ____________ 、 _____________ 、 __________ 、 ____________ 等。
【简答题】将下列段落翻译成中文 Bio-diesel is best developed in EU.Its main raw material is colza oil. In 2003, yield of bio-diesel in Europe was more than 1.76 million tons. It is expected that by 2010, the number would ...
【简答题】蜡疗的主要治疗方法有 ___________ 、 ____________ 、 _____________ 、 __________ 、 ____________ 等。
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