单项选择题

单子叶植物中最原始的类群是( )。

A.棕榈科
B.鸭跖草科
C.泽泻科
D.禾本科
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热门 试题

单项选择题
What is Peggy reading newspapers for?()

A.She is trying to find a flight number in the advertisements in the newspapers.
B.She is trying to find a flat in the advertisements in the newspapers.
C.She is trying to find a film in the advertisements in the newspapers.
D.She is trying to find a funny article in the newspapers.

单项选择题
旱伞草(风车草)为( )一种观赏植物。
A.禾亚科
B.竹亚科
C.莎草科
D.灯心草科
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