题目

NoticeThere will be a lecture onClassic American Literature (文学)By Visiting Professor (教授) Cornellfrom Stanford UniversityIn The Fifth Building,Classroom No. 102On Sep. 4th. 2019. at 2 pmAll are warmly welcome!The Office of the Foreign Language Department (系)Sep. 2nd. 2019【1】This notice is telling students about ________.A.the next American literature classB.the date of welcoming Professor CornellC.the coming lecture on American literature by Professor Cornell【2】Which of the following is NOT TRUE according to the notice?A.There will be a lecture on American literature m the f设函数f （x）的图象与直线x=a，x=b及x轴所围成图形的面积称为函数f（x）在[a，b]上的面积，已知函数y=sinnx在[0，]上的面积为（n∈N*），（i）y=sin3x在[0，]上的面积为    ；（ii）y=sin（3x-π）+1在[，]上的面积为    ．