对于保险业务的分出，分出公司和分入公司均有义务约束的一种再保险安排方式是（）。
A.比例再保险
B.临时再保险
C.预约再保险
D.合同再保险
参考答案：D
—____ you stay at home last week?
—Because l was ill. [ ]
A. What did
B. Why did
C. Why were
D. Where did
窑气洗涤
