化学反应原理在科研和生产中有广泛应用
参考答案:xS+2e-=Sx2-
解析:
At present, lots of people would rather in the country because there is pollution in the city.
A.live; more
B.to live; less
C.live; less
D.to live; more
消谷善饥多因()
A.木
B.水
C.土
D.金
E.火