点距是彩色显示器的一项重要技术指标,点距越小,可以达到的分辨率就越高,画面就越清晰。
A.正确
B.错误
参考答案:对
She usually does_______ homework after supper.[ ]
A. her
B. she's
C. she
D. his
现浇水磨石楼梯磨光步骤和遍数与地面大面积水磨石相同。( )