文殊兰为球根花卉,株高可达lm。鳞茎_________。叶多数密生,在鳞茎顶端莲座状排列,条状披针形,花白色。
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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