(-1)2+(-2)3+(-3)4+(-4)5=______.
(-1)2+(-2)3+(-3)4+(-4)5=1+(-8)+81+(-1024)=-950.
故答案为-950.
If Jim ______ up earlier, he can finish the work in time. [ ]
A. get
B. will get
C. gets
D. is getting
即使是与亲朋好友聚会,也应该闲谈莫论企业秘密。