真热假寒的面色是( )
A．满面通红B．浮红如妆C．面色紫暗D．面呈青色E．面呈黑色
参考答案：C
汽车在长100km的公路上行驶，前50km的速度为20m/s，后50km的速度为10m/s，汽车在这100km公路上的平均速度为_____m/s．
Directions.
A. Study the following picture carefully and write an essay of about 160--200 words.
B. Your essay must be written clearly on the ANSWER SHEET 2.
C. Your essay should meet the requirements below:
1) Describe the drawing,
2) interpret its meaning, and
3) point out its implications in our life.
