高速公路和一级公路，一般为四车道，必要时车道数可按单数增加。
参考答案：错
Hearing that he had been appointed _____ general manger of the company, he felt a wave of excitement
flooding through his body. [ ]
A. X
B. a
C. the
D. as the
装载动植物、动植物产品和其他检验检疫物的集装箱应实施动植物检疫。( )
