286.检量原木的直径,小于等于( )厘米的,四舍五入至厘米。

正确答案：A

解析：

这道题考察的是对直径的测量和四舍五入的理解。在这道题中，要检量原木的直径，如果直径小于等于14厘米，就要四舍五入至整数厘米。所以正确答案是A。

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