Many grocery stores use misting, a proce
题型：选择题
问题：
Many grocery stores use misting, a process ________ vegetables are sprayed with water, to keep vegetable fresh.[ ]
A. which
B. that
C. what
D. where
Many grocery stores use misting, a process ________ vegetables are sprayed with water, to keep vegetable fresh.[ ]
A. which
B. that
C. what
D. where