正确答案: B

错误

题目：木兰科、蓼科、十字花科和大戟科植物均为单叶。( )

解析：B

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举一反三的答案和解析：

[单选题]研究蛋白质的分类学价值时采用以下各种研究方法，但除( )以外。

分子杂交

[单选题]Which of the following is TRUE according to Paragraph 3?

The author’s mother was not respected sometimes.

[单选题]18-3．分子式为C5H10O2的酯共有(不考虑立体异构) ：

9种

[单选题]What can we conclude from the text?

Thinking and writing are different stages of mind at work.

[单选题]In the writer’s opinion, his neighbor was _____________.

not considerate

[单选题]Why was the woman at the airport?

She was seeing the man off.

[单选题]What kind of man is doing most housework according to the text?

An unmarried man. B． An older married man.

[单选题]下列违背价值进规律的是

甲用一块砖头充当秦代文化，换走乙一块黄金