电动葫芦在工作中，不准倾斜起吊，也不准作拖拉工具使用
参考答案：对
I'll show you a store ___you may buy all ____you need. [ ]
A. in which; that
B. where; which
C. which; that
D. that; that
慢性脓胸的主要病因是什么?
