正确答案: D
多数离生心皮
题目:毛莨科与木兰科具明显的亲缘关系,主要原因是二者均具有( )。
解析:D
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举一反三的答案和解析:
[单选题]2010年5月11日,北京,一场笃定的精确打击,一举将天上人间夜总会延续十多年的张扬打翻在地。随即,一场发轫于北京的扫黄行动向全国其他地区迅速传导,迄今这场风暴已刮向至少26个大中城市,查获有偿陪侍等涉黄人员数千人。这是政府在履行
保障人民民主和维护国家长治久安的职能
[单选题]珠心、珠被和珠柄愈合的部位,称合点。( )
正确
[单选题]BThree years ago, five parrots were set free in a wild place of Arizona, thousands of miles from the Channel Islands in Jersey where they had been looked after by zookeepers. No evolutionary strategies informed them how to behave in this new landscape of mountainous pine forest unoccupied by their kind for 50 years. To the researchers’ surprise, they failed to make contact with a group of wild parrots imported from Mexico and set free at the same time. Within 24 hours the reintroducing ended in failure, and the poor birds were back in cages, on their way to the safety of the Arizona reintroduction programme.
It used to be home to parrots of their kind.
[单选题]Why are researches on parrots important according to the passage?
We need to know more about how to preserve parrots.
[单选题]Nowadays people sometimes separate their waste to make it easier for it ( ) .
to be reused
[单选题]部分真菌因其细胞中含有叶绿素等光合色素,故呈现不同的颜色。( )
错误
解析:解析:部分真菌因其细胞中含有各种非光合色素,故呈现不同的颜色。
[单选题]裸子植物的胚乳是( )。
配子体世代,核相为N