道路运输车辆卫星定位系统车载终端至少需要搜索到()颗卫星以上才能定位。
A.1
B.2
C.3
参考答案:C
路基基底处理桩的主要常见类型有(列举4种即可):()
汉译英:“动植物检疫;宰前兽医检验”,正确的翻译为:( )
A.animal and plant quarantine;ante-mortem veterinary inspection
B.ante-mortem veterinary inspection;animal and plant quarantine
C.animal and plant quarantine; detection of defects
D.detection of defects;ante-mortem veterinary inspection