题目

阅读理解 （1） Which robot can help you when shopping？ A . Budgee． B . Simon． C . Paro． D . Rover． （2） We can learn from the passage that Paro ． A . can tell whether others pay attention to him． B . was created by Five Elements Robotics． C . can help cows produce more milk． D . is used on patients in hospitals． （3） What can Simon do according to the passage？ A . Show feelings． B . Clean offices． C . Move cows． D . Learn names． （4） What is NOT TRUE according to the passage？ A . Robots can comfort si已知m=（3sin2x-1，cosx），n=（12，cosx），设函数f（x）=m•n．求函数f（x）的最小正周期及在[0，π2]上的最大值．