两物体表面辐射换热时，角系数取决于（）。A.物体表面的空间相对位置 B.两物体表面的 发布时间：2017-06-08 09:00 │ 来源：www.tikuol.com 题型：单项选择题 问题： 两物体表面辐射换热时，角系数取决于（）。A.物体表面的空间相对位置B.两物体表面的性质C.两物体表面的空间相对位置和表面的性质
题型：单项选择题 完形填空。 Hi! My name is Lin Han. I'm a (1) boy. I'm eleven years (2) . I'm (3) Nanjing, Jiangsu Province. Do you (4) Nanjing? It's very old and famous. I'm (5) No. 2 Primary School. There are (6) two (7) students in our (8) , I'm in Class One, Grade (9) . There are thirty boys and twenty-five (10) in my class. I like playing computers and football.( ) 1. A. China ( ) 2. A. old ( ) 3. A. at ( ) 4. A. know ( ) 5. A. on ( ) 6. A. about ( ) 7. A. thousands ( ) 8. A. city ( ) 9. A. five ( ) 10. A. girls B. Chinese B. older B. to B. see B. in B. always B. thousand B. school B. Five B. teachers C. America C. younger C. from C. speak C. to C. under C. thousand C. province C. six C. doors 查看答案