雨凇、雾凇凝附在导线上或湿雪冻结在导线上的现象,称为电线积冰。()
参考答案:对
()年,温斯勒提出:“健康促进就是组织社区,努力针对各种危险因素。开展个人卫生教育,完善社会机构以保证有利于维持并增进健康的生活水准。”
A.1910
B.1920
C.1930
D.1940
My sister is very _______. She has few words. [ ]
A. lazy
B. cute
C. quiet
D. smart