()属于机车标记。
A.路徽
B.车型
C.车号
D.最高运行速度
参考答案:A, B, C, D
- What type of mobile phone do you want to have? Something big?
- Well, it _______ be big - that's not important.
A mustn't B. needn't C. can't D. won't
支管制作方法有()
A.展开法
B.使用马鞍切割机切割
C.凭经验在管子上画出切割线,切割后放到主管上检查逐步修理
D.任意切割