建筑施工企业必须为从事危险作业的职工办理意外伤害保险，由（）支付保险费。
A.建筑施工企业
B.职工
C.建筑施工企业和职工
D.保险公司
参考答案：A
—Would you please quickly _____ the composition for me and see if there are any mistakes?
—Ok. I'll do it right now. [ ]
A. look for
B. look up
C. look through
D. look after
黄土都具有湿陷性。（）
