【判断题】In 1720, the first group of puritan Pilgrims arrived in America for religious .
【判断题】The Daily Courant was first published in 1720.
【单选题】A war took place in ____ .
【简答题】After g______, Einstein went to work, first as a teacher, then in a government office.
【单选题】果蝇在实验室人工饲养时的最适温度是多少度?
【单选题】设f(x)为不恒等于零的奇函数,且f'(0)存在,则( ) A.在x=0处左极限不存在 B.有跳跃间断点x=0 C.在x=0
A.
设f(x)为不恒等于零的奇函数,且f'(0)存在,则函数g(x)=f(x)/x( ) A.在x=0处左极限不存在