相邻界址点间距、界址点与邻近地物点关系距离的中误差不得大于图上( )毫米是地籍铅笔原图的基本精度要求。
A.±0.4
B.±0.3
C.±0.5
D.±0.7
参考答案:B
液压冲击时()。
A.压力很高
B.振动噪声不大
C.不产生温升
D.不影响元件设备正常工作
_____ is commonly believed that the play was written by Shakespeare.
A.It
B.That
C.What
D.As