单选题：填方路基在碾压时应先轻后重，最后碾压机械应为不小于（　　）级的压路机。

题目内容：

填方路基在碾压时应先轻后重，最后碾压机械应为不小于（　　）级的压路机。 A．6t
B．8t
C．10t
D．12t

参考答案：【答案仅供学习，请勿对照自行用药等】

答案解析：

It mainly focuses on the development of your reading techni

It mainly focuses on the development of your reading techniques.

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