题目

—Why don’t we just leave it until tomorrow? — I’m dead tired today. A. Forget it.                           B. I couldn’t agree more. C. It all depends.                     D. Don’t mention it. 答案：B西北地区利用黄河水灌溉的农业区是（    ）A．藏南谷地、湟水谷地B．宁夏平原、河套平原C．柴达木盆地、塔里木盆地D．河西走廊、天山山麓