车轮附着力大小与()有关。
参考答案:轮胎气压
Aften ten years' hard work, his dream has been _____. [ ]
A. realized
B. come true
C. came true
D. made true
划分地壳和地幔的界限是( )
A.莫霍面
B.古登堡面
C.软流层
D.岩石圈