常表现于对个体思想和行为的发动、支配、维持和定向的是（）
A.自我意识
B.自我认知
C.自我情感
D.自我意向
参考答案：D
把圆柱体铁块熔制成一个圆锥体铁块，已知圆柱的底面半径是2厘米，高是3厘米，熔制成圆锥的底面半径是3厘米．那么圆锥的高是多少？
The citizens didn't feel safe at all after several families had their house（）sat night and a lot of things stolen.
A．broken in
B．broken into
C．to be broken into
D．break in
