世界上华人华侨分布最集中的地区是（    ）

下列说法错误的是（）

首先发现电流磁效应的物理学家是（　　）

设实数x，y满足条件$\left\{\begin{array}{c}4x-y-10\le 0\\ x-2y+8\ge 0\\ x\ge 0,y\ge 0\end{array}\right.$，若目标函数$z=ax+by\left(a>0,b>0\right)$的最大值为12，则$\frac{2}{a}+\frac{3}{b}$的最小值为（    ）

根据中文提示，写出单词，注意单词的正确形式(共10个空格，每个空格1分，满分10分)
1.Who can see the____(美丽)of this picture?
2.Our school basketball team needs your____ (支持)．
3.I ____(相信)our school football team will win the match.
4.I read many____ (英雄)stories．
5.____(幸运)，Millie did not hurt herself in the traffic accident．
6.My little brother has two big____ (微笑)eyes．So everyone likes him very much．
7.Everybody____（欢呼）when the pop star arrived.
8.It's not right to____ （吓唬） the small children.
9.Betty is one of the____(获胜者)of the writing competition．
10.Lucy and Lily kept their secret to____ (他们)．