现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水()
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现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水()
A.155ml
B.165ml
C.178ml
D.185ml
E.195ml
参考答案:
现有95%乙醇500ml,要配制70%乙醇,需加入灭菌蒸馏水()
A.155ml
B.165ml
C.178ml
D.185ml
E.195ml
参考答案: