小题1:—How are you, Jack? —I am OK.

A．Good

B．Nice

C．Fine

D．great小题2: This is Mr. Huang. He is an English teacher.

A．He’s

B．It’s

C．His

D．It is小题3:My grandmother and grandfather like vegetables very much.

A．parents

B．grandparent

C．grandparents

D．parent小题4: My father eats eggs for breakfast. He likes them very much.

A．has

B．is

C．likes

D．meets小题5:I have no balls, but Jim has.

A．doesn’t have

B．am not

C．am not have

D．don’t have

“十一黄金周”期间，小群一家驾车去百脉泉游玩．一路上，所学的物理知识帮助他解决了不少实际问题．在经十东路上，小群注意到一个交通标志牌上的指示如图所示．

（1）你能说出这两个标志牌的含义吗？

（2）如果小群的爸爸从此处到达明水这段路程用了30min，则汽车的速度是多少？

（3）在遵守交通规则的前提下，计算从标志牌到明水最快要多长时间？