挑战习题
1/5单选题
难度:

1.实验室中配制250mL0.50mol•L-1的H2SO4溶液时,无须使用到的仪器是
A
B
C
D
提示1:
5LuO5a6e6aqM5q2l6aqk5p2l5LiA5LiA5YiG5p6Q77ya6YeP5Y+W44CB5rq26Kej44CB56e75ray44CB5a6a5a6544CC
正确答案:RA==
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