____
我国领土最南端在( )
读课文《荷花》填空:
荷叶挨挨挤挤的,像一个个碧绿的大圆盘。这句话中描写荷叶数量多的词是____,描写荷叶颜色的词是____,描写荷叶形状的词语是____。
— How was your stay in Hong Kong?
—________. And it was a pity that I couldn't stay there longer.
(Ⅰ)若 f(a)=12 ,求a的值;
(Ⅱ)判断函数f(x)的奇偶性,并证明你的结论.