箱内表面的总的半球发射率可以是()
A、0.80
B、0.83
C、0.85
D、0.88
参考答案:C, D
—Lu does work hard.
—Yeah. _____ of his time ______been spent on studies every day.
A.Four-fifths; has
B.Four-fifths; have
C.Four-five; has
D.Fourths-five; have
1984年的8月1日,邓 * * 同志在北戴河听取了谷牧同志对宁波工作的汇报。 * * 说:宁波的事情好办点,宁波有那么多人在外边,世界上有名的两个船王包玉刚、董浩云都是宁波人。把全世界的“宁波帮”都动员起来,建设宁波。