—Not at all. I'd like ____.
Would you please explain the problem them?
下列句中加线词的意思相同的一项是（ ）
鉴别四种溶液：NH4Cl、（NH4）2SO4、NaCl、Na2SO4，若只用一种化学试剂，则该试剂可以是 ____
yuán lái
shū shu
yóu dì yuán
lǐ wù
yóu jú
xiān huā
____
