lg300/7+lg700/+lg100=?具体部聚

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lg300/7+lg700/+lg100=?具体部聚lg300/7+lg700/+lg100=?具体部聚lg300/7+lg700/+lg100=?具体部聚lg(300/7)+lg700/+lg100

lg300/7+lg700/+lg100=?具体部聚
lg300/7+lg700/+lg100=?
具体部聚

lg300/7+lg700/+lg100=?具体部聚
lg(300/7)+lg700/+lg100 =lg300-lg7+lg700+lg100 =lg3+lg100-lg7+lg7+lg100+lg100 =lg3+2+2+2 =6+lg3 或=6+0.4771=6.4771