题干
The shop is small but there are people in it.
A：too much
B：many too
C：too many
D：much too
答案(点此获取答案解析）
C
The shop is small but there are people in it.
A：too much
B：many too
C：too many
D：much too
过量的CaCl2溶液，得到4.5g沉淀，对样品所含杂质的正确判断是
( )