保守稳健型投资者希望能通过投资来获利,并确保足够长的投资期间。( )
参考答案:错
Television has many advantages. It keeps us _____ about the _____ news and also provides entertainment in the house.
A.informed; latest
B.to know; later
C.learning; latter
D.to think; latest
金属材料下列参数中,不属于力学性能的是()。
A、强度
B、塑性
C、冲击韧性
D、热膨胀性