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1 取100公克模砂做水份含量試驗,經烘乾後稱得殘餘重量為93.02公克,則測得模砂之含水份為
A 3.49%
B 4.98%
C 4.49%
D 6.98%
含水量=(100-93.02) / 100 = 6.98%