问题
选择题
My brother likes _____ but he can't _____ well. [ ]
A. draw; draw
B. drawing; draw
C. drawing; draws
D. to draw; draw
答案
答案:B
My brother likes _____ but he can't _____ well. [ ]
A. draw; draw
B. drawing; draw
C. drawing; draws
D. to draw; draw
答案:B
设硅玻璃在不同温度下的比热如表1-13所示。
表1-13 硅玻璃比热表
温度(T℃) | 100 | 200 | 300 | 400 | 500 |
比热(Cp) | 0.2372 | 0.2416 | 0.2460 | 0.2504 | 0.2548 |
A.0.2383
B.0.2427
C.0.2438
D.0.2449