数学:
有三道因式分解的题目, 请写出过程。
Q1 ab(c²-d²)+ cd(a²-b²)
Q2 x²-4mx+8mn-4n²
Q3 x³-11x²+31X-21 第一个因式是三次方
英语:
翻译下列句子
Q1 David Copperfield kind of crap
Q2 two hemorrhages apiece
Q3 They're nice and all
Q4 whole goddam autobiogra-phy
Q5 crumby place
Q6 One of those little English jobs that can do around two hunderd miles an hour.
Q7 terrific
Q8 in case you never heard of him
Q9 It killed me
Q10 being a prostitute