【单选题】Where is the man going?
B.
He is going to school.
C.
He is going to his office.
【单选题】I remember her and her brother _____ to our office.
【简答题】古代两河流域文明使用楔形文字书写的两种主要语言是 。
【单选题】下面发动机零件属于曲柄连杆机构的是。 答案
【单选题】______ last Friday, he would have got to Paris.
【单选题】______ last Friday, he would have got to London.
【单选题】I can still vividly remember to pick our steps in the mountain down the deep valley on my 21 st birthday.
A.
picking.., in the mountains
B.
picking ... on the mountain
C.
having picked ... from the mountains
D.
picking ... from the mountains
【简答题】A.He is going to write a paper. B.He is going to a football . C.He is going to sleep all morning. D.He is going downtown with some guys.
【简答题】设函数 ,求f(x)的间断点并指出其类型