工伤保险基金按伤残等级支付一次性伤残补助金，（）级伤残为21个月的本人工资。
A.一
B.二
C.三
D.四
参考答案：D
—Your coat looks nice. Is it _____ wool?
—Yes. And it's _____ Shanghai. [ ]
A. made of; made by
B. made of; made in
C. made for, made by
D. made for; made in
以下关于楼板层的作用，说法错误的是（）
A、要承受楼面全部荷载
B、对墙有支撑作用
C、能增强房屋的整体刚度
D、能增加房屋的承载能力
