【单选题】以配位滴定法测定铝。30.00mL10.0100m/1.的EDTA溶液相当于Al203(摩尔质量为101.96g/mol)的质量(mg)的计算式为()
B.
30.00×0.01000×(101.96/2)
C.
30.00×0.01000×(101.96/2000
D.
30.00×0.01000×101.96×(2/6)
【单选题】水准测量时,应使前后距离尽可能相等,其目的是减弱 ( )的误差影响
【单选题】一What does your uncle do? 一________. [ ]
D.
He studied ham at math
【判断题】销售促进是连锁超市最重要的促销方式,其具体的方法多种多样。
【判断题】开标时间可以和招标文件规定的投标截止时间不一致。
【单选题】What does the man mean?
C.
He likes to hear good news, not the bad one.