问题
选择题
—How was the rain yesterday?
—Oh, it was quite _____.[ ]
A. heavy
B. heavily
C. big
D. small
答案
答案：A
搜题请搜索小程序“爱下问搜题”
—How was the rain yesterday?
—Oh, it was quite _____.[ ]
A. heavy
B. heavily
C. big
D. small
答案：A
2MgO+C，在实现图示的化学变化中，属于氧化还原的是 