题目内容：
水稻和陆稻属于下列哪种生态型( )
A.气候
B.土壤
C.生物
D.相同的
参考答案：
选择题：水稻和陆稻属于下列哪种生态型( )
- 题目分类：习题答案
- 题目类型：选择题
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平均动脉压在一定范围内升降时,脑血管相应收缩或舒张以保持脑血流量恒定,属于( )
平均动脉压在一定范围内升降时，脑血管相应收缩或舒张以保持脑血流量恒定，属于（ ）
请将正确答案填在第27处。
请将正确答案填在第27处。A．wayB．timeC．stepD．set
Not until all the fish died in the river__________ how serious the pollution was
Not until all the fish died in the river__________ how serious the pollution was．A．did the villagers
Many things __________impossible in the past are common today.
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Form. the story we may conclude that the old woman lived__________A．aloneB．with a servantC．with her c