His little brother shouldn't listen to ____ loud music. [ ]
A. such
B. so
C. many
答案:A
两物体质量之比为1:2,它们的初动能之比为1:3,它们与水平路面的动摩擦因数之比为3:2。则它们在水平路面上滑行的最大距离之比为
A.1:4 B.4:9 C.1:9 D.9:4
作品的构成要件应当是()
A.新颖性
B.创造性
C.独创性
D.可欣赏性