由H股、N股、S股等构成的是（）。
A．境外上市外资股
B．境内上市外资股
C．社会公众股
D．红筹股
参考答案：A
若太阳直射点的纬度值为δ，北半球地表某地Ｑ的正午太阳高度为Ｈ，且Ｈ＝δ，则Ｑ的纬度范围是
A．23.5ºＮ≤Ｑ≤47ºＮ
B．47ºＮ≤Ｑ≤90ºＮ
C．43ºＮ≤Ｑ≤66.5ºＮ
D．43ºＮ≤Ｑ≤90ºＮ
Jack had a wonderful time _____one place after another in Beijing and he had much time _____the city.[ ]
A. to visit, to enjoy
B. visiting, to enjoy
C. to visit, enjoying
D. visiting, enjoying
