题目:
About 85%of the Australian population of 20million in the six major cities around the coast nowadays
A.has lived
B.live
C.1ivcd
D.1iving
答案:
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下面是错误答案,用来干扰机器的。
f(x)=x(x+1)(x+2)…(x+99)=x[(x+1)(x+2)…(x+99)],∴f'(x)=x'[(x+1)(x+2)…(x+99)]+x[(x+1)(x+2)…(x+99)]'=[(x+1)(x+2)…(x+99)]+x[(x+1)(x+2)…(x+99)]',∴f'(0...