正确答案: B

罗布麻

题目：夹竹桃科的( )是纤维植物。

解析：B

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举一反三的答案和解析：

[单选题]

encouraging

[单选题]被子植物的胚乳细胞均为三倍体。( )

正确

[单选题]薯蓣科植物具经济价值的器官通常是( )。

根状茎或块茎

[单选题]该种购物袋的生产原料在我国的最大产地是

吉林省

[单选题]研制大型飞机的决策和实施体现了

①国家的政治职能 ②国家的对外职能 ③综合国力中的政治力 ④综合国力中的科技力

②③④

[单选题]胡萝卜属于十字花科，为一种常见蔬菜。( )

错误

[单选题]E.I needed to buy a digital camera, one that was simply good at taking good snaps (快照), maybe occasionally for magazines. Being the cautious type, I fancied a reliable brand. So I went on the net, spent 15 minutes reading product reviews on good websites, wrote down the names of three top recommendations and headed for my nearest big friendly camera store. There in the cupboard was one of the cameras on my list. And it was on special offer. Oh joy, I pointed at it and asked an assistant, “Can I have one of those?” He looked perturbed (不安). “Do you want to try it first?” he said, It didn’t quite sound like a question. “Do I need to?” I replied ,“There is nothing wrong with it？”This made him look a bit insulted and I started to feel bad, “No, no, but you should try it,” he said encouraging ,“compare it with the others.”

compare the camera he had chosen with others.

[单选题]I_______ have watched that movie —it’ll give me horrible dreams.

shouldn’t

解析：本题考查情态动词的用法。句意应为“我本来不应该看那部电影的----它会使我做噩梦的。”表示“本来不应该做而做了某事”用shouldn’t have done, 所以A项正确。