正确答案: A

正确

题目：组成植物细胞壁结构的基本单位是微纤丝。( )

解析：A

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举一反三的答案和解析：

[单选题]近期研制出利用玉米叶片加工、编织购物袋的技术，这种购物袋易分解且物美价廉。据此完成1~3题。1.该种购物袋的生产厂应该近

原料产地 B．销售产地

[单选题]What would be the best title for the passage?

TV Will Better the World

[单选题]In the last paragraph the author mainly wants to express .

honesty in one’s actions can help him in the future

[单选题]不完全叶中有一类仅具叶柄。( )

正确

[单选题]23——volunteering is becoming popular in China . ——yeah,people are now aware that helping others is helping themselves.

increasingly