截尾值censored value
参考答案:
指在随访过程中,由于某种原因未能观察到患者的明确结局,不知道该患者的确切生存时间,所获得自上而下事件信息不完全。
根据中文、句意、首字母、所给词的适当形式填空。
1. It's cold today. _____ the window, please.
2. How many _____ (library) are there in the picture?
3. T_____ is the third (第三) day in a week.
4. There are five _____ (orange) trees in the park.
5. Those______ (手表) are nice.
6. There is a desk _______ (在----旁边)the window.
7. Peter likes ________ (play) basketball.
8. We are in the same class. We are c_________.
9. — Are these our bikes?
— No, they're _____ (they).
10. It's time _____ (play) basketball.
11. He _____ (fly) the kite every Saturday afternoon.
汽油机式消防排烟机主要由汽油机、()和机架等组成。
A.风机
B.筒体
C.叶轮
D.轴