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问答题

某城市拟建一座8层宾馆，地下1层，地上7层，其中一层为大厅，层高5m，2～3层为客房，层高2.8m，地下室层高3m，一层与室外地面高差1m，城市供水保证压力为200KPa，试选用合理的给水方式。

单项选择题

 The absorbance of a solution is 0.6. If the solution concentration becomes half of the original solution, what is the transmittance of the diluted solution?

A．10-0.6
B．100.6
C．10-0.3
D．100.3