a÷b=7(a,b不为0),所以a是b的倍数,b是a的因数。[ ]
错误
已知函数f(x)=loga(1+x),g(x)=loga(1-x)其中(a>0且a≠1),设h(x)=f(x)-g(x).
(1)求函数h(x)的定义域,判断h(x)的奇偶性,并说明理由;
(2)若f(3)=2,求使h(x)<0成立的x的集合.
语法填空
I needed his help 1______I had very little education. I began school at six. The school 2______ I
studied for only two years was three kilometres away. I had to leave because my family could not
continue to pay the 3_____ fees and the bus fare. I could not read 4_____ write well. After trying hard,
I got a job in a gold mine.
However, this was a time 5_____one had got to have a passbook to live in Johannesburg. Sadly I
did not have 6____ because I was not born there, 7______ I worried about whether I would become
8___ of work.
The day when Nelson Mandela helped me was 9_____ of my happiest. He told me how to get the
correct papers so I could stay in Johannesburg. I became more 10(hope)_______ about my future.