斜坡道上运输基本制度是什么?
参考答案:
斜坡道上运输,必须坚持“开车不行人,行人不开车”,“开车亮红灯,停车红灯灭”制度。
桑塔纳2000GSi型轿车AJR型发动机空气流量传感器采用()流量传感器。
A.卡门涡旋式
B.翼片式
C.热线式
D.热膜式
Why have the Americans developed space shuttle according to the passage
Why have the Americans developed space shuttle according to the passage A.It is a first step to explore outer space.B.It is a follow-up action of the Apollo moon landings.C.It is a compromise to the exorbitant human expeditions to the Mars.D.It is a compensation for the wishful thinking of human landing on the Mars.
A.It is a first step to explore outer space.
B.It is a follow-up action of the Apollo moon landings.
C.It is a compromise to the exorbitant human expeditions to the Mars.
D.It is a compensation for the wishful thinking of human landing on the Mars.