价值转换的三个方面不包括下面哪一项()
A、交换价值和情感价值的转换
B、眼前的价值和未来价值的转换
C、情感价值和物质价值的转换
D、现实价值与非现实价值之间的转换
参考答案:C
一自行车沿水平公路匀速运动的速度为4米/秒,则该物体在5秒内通过的路程为______米,若以该自行车为参照物,路边的树是______(选填“运动”或“静止”).
There are 105 students taking history and/or mathematics. How many students are taking only mathematics (1) Thirty students are taking history only. (2) Fifty students are taking both history and mathematics.