问题
单项选择题
测量大型工作台面的平面度误差时，采用（）法可得到较高的测量精度。
A.标准平板研点
B.光线基准
C.间接测量
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
测量大型工作台面的平面度误差时，采用（）法可得到较高的测量精度。
A.标准平板研点
B.光线基准
C.间接测量
参考答案：C
| 短文填空。 | |
o'clock. He brushes (刷) his teeth (3)______ eats breakfast. After breakfast he plays his guitar. Then he goes to see his grandfather (4)______ his parents. They (5)______ some fruit for his grandfather. His grandfather is very (6)______ to see them. They have lunch together (一起). (7)______ the afternoon Mike goes to the basketball club. There he plays basketball for (8)______ hour (小时). Mike (9)______ home at five o'clock. At five thirty he eats dinner. Mike goes to bed at ten thirty. This is Mike's (10)______. |