A:To lack
B:Lacking of
C:To lack i
D:Lacking
①将△ABC以点C为旋转中心旋转180°,画出旋转后对应的△A1B1C;
②平移△ABC,若点A的对应点A2的坐标为(0,﹣4),画出平移后对应的△A2B2C2 ;
③若将△A1B1C绕某一点旋转可以得到△A2B2C2,求旋转中心的坐标。
一重为20N的物体,它受到的重力与它的质量的比值为____,当它的质量增大两倍时,它的重力与质量的比值为____。
A new owner wanted
What's your favorite animal? Do you like ____? Bo is my favorite friend, but now I'm____ with my study. I have a hard ____taking good care of him. Can you do that____ of me? If you say “ yes”, please call me at 87549324 or you can ____ your email to Betty @163.com.
Write to me soon.
Betty