【单选题】轮胎的速度等级是:
A.
表示在正常状态下轮胎最大速度值的工业标准字母
D.
表示在正常状态下轮胎最大速度值的工业标准数字
【单选题】The short story is a narration in which reality and fantasy interweave. What does this way of presentation suggest?
A.
Mitty resorts to fantasy to deal with frustrations in life.
B.
Mitty is confused about reality and fantasy .
C.
Mitty has great imaginative power.
D.
Mitty’s fantasizing is an effective healing process.
【单选题】某轮胎的标号为185/60R15 84 Z,请问表示轮胎的速度等级是( )?
【简答题】已知抛物线y 2 =2px(p>0)的焦点为F,A是抛物线上横坐标为4、且位于x轴上方的点,A到抛物线准线的距离等于5。过A作AB垂直于y轴,垂足为B,OB的中点为M, (1)求抛物线的方程; (2)过M作MN⊥FA,垂足为N,求点N的坐标; (3)以M为圆心,MB为半径作圆M,当K(m,0)是x轴上一动点时,讨论直线AK与圆M的位置关系。
【单选题】The short story is a narration in which reality and fantasy interweave. What does this way of presentation suggest?
A.
Mitty’s fantasizing is an effective healing process.
B.
Mitty is confused about reality and fantasy.
C.
Mitty has great imaginative power.
D.
Mitty resorts to fantasy to deal with frustrations in life.
【单选题】轮胎的速度等级是()。
A.
表示在正常的状态下轮胎最大速度值的工业标准的字母
D.
表示在正常的状态下轮胎最大速度值的工业标准的数字