单项选择题
常用的去蛋白质的试剂是()
常用的去蛋白质的试剂是()
A、醋酸
B、硫酸
C、甲醇
D、盐酸
E、冰醋酸
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单项选择题
-We should not only study all the time.
-We should go out and practice.
-We should not only study all the time.
-We should go out and practice.
A.We should only study all the time in opposition to going out and practice.
B.We should go out and practice as opposed to only studying all the time.