汽车列车转直角弯时，需先判断弯道情况，减速或停车后重新起步，缓慢通过。
参考答案：对
解析：遵循“一停二看三通过”的原则，安全第一。
I think he is right.[ ]
A. am not
B. doesn't
C. isn't
D. don't
数据有哪些特点？
