It seems ____ the company Dubai World is unlikely to survive in this serious financial crisis.    [ ]

A. like if            

B. because of

C. as if        

D. for that

检修工作开始以前，工作许可人和工作负责人应共同到现场检查（），确已正确地执行，然后在（）上签字，才允许开始工作。