A:x只能是第三周期的元素
B:a―b+n+m等于10或16
C:b大于5
D:Y不可能是第二周期元素
I think July is ____ (hot) than any other month in our country. It's ____ (hot) month of the year.
—What’s wrong with the baby, doctor?
—_______. Just a slight cold.