捣固车在直线和圆曲线上用四点法检测拨道作业时（）。
A、修正值方向为左
B、修正值为右
C、直通
D、手
参考答案：B
阅读短文，选择正确的答案。
Jim and Lily are my best friends. We live in London(伦敦). This is my classroom.
There is amap on the wall. There are thirty-four chairs and desks in it. There are twenty boys. Jim's desk
is beside IJily's. My desk is in front ofLily's. We all like English. We like to play football.
1. How many maps on the wall?
A. 2.
B. 1.
C. 3.
2. How many students in this classroom?
A. 35.
B. 34.
C. 20.
3. How many girls in this classroom?
A. 20.
C. 14.
4. Whose desk is beside Lily's?
A. Mine.
B. Jim's.
C. I don't know.
5. Which lesson do they like?
A. English.
B. Maths(数学).
C. Chinese.
混床氨化运行具备的基本条件有哪些？
