正确答案: A

正确

题目：杨柳科植物多为速生树种，适应力强，是重要的用材及水土保持植物。( )

解析：A

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举一反三的答案和解析：

[多选题]此类合作，对我国区域发展的影响有

加快工业化进程

促进技术创新

解析：BC

[单选题]The teacher together with the students ________ discussing Reading Skills that ________ newly published in America.

is ; was

[单选题]--It looks heavy. Can I give you a hand?--_______

No, thanks