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【单选题】
以下几种水草中,水上草与水中草的形态基本一致的是:( )A.
牛顿草
B.
针叶皇冠草
C.
黑木蕨
D.
迷你矮珍珠
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皮皮学刷刷变学霸
举一反三
【单选题】According to the result of the tests of the body's energy needs, physiologists concluded that _______.
A.
two meals a day is best to the elderly people
B.
three-meal pattern is suitable nutritionally to the average adult.
C.
children need more than three meals a day
D.
having snacks is very popular in America.
【简答题】分离的,分隔的;相隔离,成距离