My name’s Tom Hanks. Tom is my ___name and Hanks is my ___name.

A．first, last

B．last, first

C．last, family

D．family, last

测定水中碘化物的催化比色法，适用于测定饮用水、地下水和（）中的碘化物，其最低检出浓度为（）μg／L。