价签表应包含几项？
参考答案：
价签表应包含货号、品名、规格、产地、单位、零售价、会员价、物价员等信息。
一质点做直线运动的v-t图象如图所示，规定向右为正方向，则该质点在前8s内平均速度的大小和方向分别为（ ）
A．0.25m/s向右
B．0.25m/s向左
C．1m/s向右
D．1m/s向左
用所给词的适当形式填空
1. She doesn't want _________(help) you at all.
2. Let's_________(look)at this map.
3. It ___________(take) me two hours to finish my homework every day.
4. It's necessary for me _________(wash) my clothes.
5. Please__________(tell) him _______(come) to the hospital.
