正确答案: B

万年青

题目：属百合科。

解析：B

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举一反三的答案和解析：

[单选题]

successful

[单选题]22上海在长兴岛北侧边滩筑堤建成青草沙水库。该水库主要功能是

提供优质水源

[单选题]我国积极开展多边外交，努力发展同发达国家的关系，全面深化同周边国家的睦邻友好关系，大力加强同发展中国家的团结合作。我国外交政策的宗旨是

维护世界和平、促进共同发展

[单选题]20世纪90年代以来，上海市区极端最高气温和高温日数明显高于郊区，热岛效应更为显著。其原因，下列叙述正确的是

郊区人口减少 城市消耗能源增加 单位面积蒸发耗热减少 城乡局地环流增强

解析：BC

[单选题]下列植物属于子叶留土的是( )。

小麦

[单选题]C Too much TV-watching can harm children’s ability to learn and even reduce their chances of getting a college degree,new studies suggest in the latest effort to examine the effects of television on children.One of the studies looked at nearly 400northern California third-graders.Those with TVs in their bedrooms scored about eight points lower on math and language arts tests than children without bedroom TVs.

have watched a lot of TV