什么是附着力?如何增大汽车的附着力?
参考答案:
附着力表示轮胎与路面附着情况。附着力的大小是车重与路面附着系数的乘积。
3岁小儿身高90cm,体重14kg,牙20个,可考虑()
A.体重、身高略低
B.营养不良
C.肥胖
D.正常
E.身材高大
Then, police began to call at the apartments in the neighborhood, investigating car- smashing, shop-lifting, and other incidents.
A.coincidences
B.accidents
C.incentives
D.occurrences