A:氢氟酸的酸性比其他酸强
B:氢氟酸的氧化性比其他酸强
C:氢氟酸的还原性比其他酸强
D:钛离子易与氟离子形成可溶性难电离物质
写作
以My Favorite Great Book为题,根据下面的问题写一篇80词左右的短文,注意适当发表自己的看法。
1 Who is the writer of the great book?
2 What is the main idea of the book?
3 Who are the important characters?
4 What is the theme of the story?
My Favorite Great Book