After we worked on adding and subtracting my girls added more Numbers to the line and jumped by twos and threes, working on skip counting.
我们学习了加减法后，孩子们又在数字列上加进许多新的数字，并隔2,3个数字跳来学习跳跃计数。
Vertical cursor position on the screen display of a screen. Counting begins at line 1.
在屏幕上显示的纵向指针的位置。从第1行开始。
Aerosol scattering counting method has been widely used in the cleaning field due to fast, high precision, good repetition and suitable for on-line measurement.
悬浮颗粒光散射计数法因测量速度快、精度高、重复性好及适用于在线测量等优点而在洁净领域得到了广泛应用。
应用推荐