△÷4=22……□，□中最大可填[ ]
A．1
B．2
C．3
答案：C
局限性骨化性肌炎的诊断必须于软组织肿块内可见到有骨结构。
It's too cold here in winter. People have to wear _______ clothes. [ ]
A. warm
B. new
C. beautiful
D. expensive
