题干
—A new railway has been built _______ in my home town.
—It'll be more convenient for you to visit your parents.
A：recently
B：in the past
C：forever
答案(点此获取答案解析）
A
的不等式组
无解，则
的取值范围是（ ）
，
，则下列说法正确的是（ ）