— What is 16 ____ 4?
— It's 4. 2 ____ 2 is also 4.
A:divided by; multiplied by
B:plus; multiplied by
C:divided by; minus
D:minus; plus
人站立在磅秤上,下面几对力中,属于平衡力的是( )
近代以来,世界科技进步,文艺璀璨。下列人物和成就搭配不正确的一项是( )
已知集合A=x|xx-1=0,那么下列结论正确的是( )