题干
—Do you know __________________?
—They moved here soon after their son was born.
A：when would the Greens move here
B：when the Greens moved here
C：the Greens would move here
D：when the Greens would move here
答案(点此获取答案解析）
B
＝2，关于p＋q的取值范围的说法正确的是（ ）