设函数y=e^x+1，则 y''=（）
e^x-1
暂无解析
Howmanyformscanarticlesberoughlydividedinto?whatarethey?
He‘sworkinghard_____.
Mr.Johnson______rathernotinvestthatmoneyinthestockmarket.
句子写作：HeisverybusypreparingIELTS.Hehasnotimetoplay.
Studentsshould_____theirowninterestsaswellasdotheirschoolwork.
