《机动车运行安全技术条件》(GB7258-2004)明确规定,三轮汽车、低速货车的比功率不应小于()KW/T。
A、4.5
B、5.0
C、6.0
D、4.0
参考答案:D
PDCA循环第四阶段的内容是( )。
A.制定方针
B.落实对策
C.组织检查
D.总结经验
The first textbooks written for teaching English as a foreign language _____ in the 16th century. [ ]
A. came about
B. came out
C. came along
D. came up