20世纪后期以来，影响健康最主要的因素是（）
A.遗传因素
B.卫生服务因素
C.环境因素
D.行为生活方式因素
E.生理生化因素
参考答案：D
Of the 2,000 stock investors______ last month, 90% was found ________ in financial knowledge.[ ]
A. surveyed; lacking
B. having been surveyed; to lack
C. surveyed; lacked
D. to have been surveyed; lack
属于连拱石桥的是（）。
A.河北安济桥
B.北京卢沟桥
C.泉州洛阳桥
D.苏州宝带桥
