下列不是西北地区种植业分布区的是
A．天山山麓
B．河西走廊
C．湟水谷地
D．河套平原
答案：C
湟水谷地属于青藏地区，是河谷农业，而西北地区主要是灌溉农业
I was searching for _____ information on the Internet when suddenly _____ computer system broke
down. [ ]
A. \; the
B. the; a
C. a; the
D. a; \
虎的牙齿
