引起热车不易启动的原因有()
A.燃油泵
B.冷却液温度传感器
C.点火线圈
D.碳罐电磁阀
参考答案:A, B, C
The primary school is in poor ______, which worries many parents and teachers.
A.state
B.situation
C.condition
D.position
利用梯车进行检修作业时,梯车推行速度为()。