公路圆曲线的放样一般采取()和()两种方法。
A.偏角法
B.正切线支距法
C.直角坐标法
D.极坐标法
参考答案:A
根据I栏的问题在Ⅱ栏中选择正确的答话。
Ⅰ
( )1. What are the boys doing?
( )2. Let's play ping-pong.
( )3. When do you want to go to the movies?
( )4. What are they talking about?
( )5. Do you want to go shopping with me?
Ⅱ
A. Let's make it at six, OK?
B. That sounds fun.
C. They are playing temiis.
D. Sure-, I'd love to.
E. An interesting place.
控制装置应具备三种基本功能:测量,计算和执行。