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韭兰鳞茎卵球形,叶_________,花粉红色。

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黄花美人蕉花极大,筒基部黄色,唇瓣鲜_________色,花瓣柔软。

葱兰鳞茎卵形,叶肉质线形,花_________色。

I.Choose the best answer.1.The sentence structure is ________. A. only linearB. only hierarchicalC. complexD. both linear and hierarchical2.The syntactic rules of any language are ____ in number. A. largeB. smallC. finiteD. infinite3.A sentence is considered ____ when it does not conform to the grammati­cal knowledge in the mind of native speakers.A. rightB. wrongC. grammaticalD. ungrammatic4.The head of the phrase “the city in which people live” is __________. A. peopleB.liveC.in whichD. the city

A __________ is a structurally independent unit that usually comprises a number of words to form a complete statement, question or command.A __________ may be a noun or a noun phrase in a sentence that usually precedes the predicate.

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