化学无处不在，下列说法正确的是（ ）
A：工业上制取玻璃的工艺是应用了物质酸性的差异
B：家庭里可用淀粉检验加碘盐是否含有碘
C：铁是人体必需的微量元素，所以可以适当地吃点铁锈
D：王水是由浓盐酸和浓硝酸两种物质按3：1的体积比混合配制成的
—As we know, planting trees is good for the environment. _______ will we plant trees on the hill?
—Maybe in two weeks.
A →O2 B →O2 C
A
What book class no down south black good
B
Bye stairs shop west thing board ever mate
⑴____⑵ ____⑶____ ⑷ ____ ⑸ ____ ⑹ ____ ⑺ ____ ⑻ ____
in order to, set up, nature park, go back to, work hard
