简单的说就是:1. ≤2.5尾数为0;£ë<EL{
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`D7ÆÕ0 bbs.3c3t.com²lïâê^9 2. 2.5~7.5尾数为5;£ë<EL{
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`D7ÆÕ0 bbs.3c3t.com²lïâê^9 3. ≥7.5尾数为10,其实尾数也是0.就是10进一位啦!£ë<EL{
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`D7ÆÕ0 bbs.3c3t.com²lïâê^9`D7ÆÕ0 bbs.3c3t.com²lïâê^9说的对!!简单明了!
`D7ÆÕ0 bbs.3c3t.com²lïâê^9