我国河西走廊地区的灌溉水源主要指（ ）
A．黄河水
B．长江水
C．湖泊水
D．祁连山冰川、冰雪融水
答案：D
Is it in the factory _____ you visited last week _____ this kind of car is made? [ ]
A. that; that
B. which; where
C. where; which
D. which; which
闭塞性周围动脉粥样硬化最常侵犯()
A．股-腘动脉
B．胫-腓动脉
C．主-髂动脉
D．肱-桡动脉
E．腋-肱动脉
