问题
多项选择题
关于单子叶植物纲，说法正确的有（）。
A.胚内仅含1片子叶
B.主根发达，多为直根系
C.叶具平行脉或弧形脉
D.茎一般不能加粗
E.根多为须根系
答案
参考答案：A, C, D, E
搜题请搜索小程序“爱下问搜题”
关于单子叶植物纲，说法正确的有（）。
A.胚内仅含1片子叶
B.主根发达，多为直根系
C.叶具平行脉或弧形脉
D.茎一般不能加粗
E.根多为须根系
参考答案：A, C, D, E
In China, if people have a cold and they don’t think it’s serious, 小题1: There they can buy the medicine they need. They can also get some advice about their illnesses from the doctors and they are told what they should do. 小题2: If their illnesses are a little more serious. 小题3: Doctors usually ask about their trouble, check them over with equipments（仪器）and then give them a prescription（处方）. 小题4: they may have to stay in hospital. When people, especially（特别）the old or the babies, are badly ill, they can call 120 for help. the ambulance（救护车）can take them to the hospital as soon as possible. 小题5:
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