不定项选择
In the 1960s, a white audience brought the blues into mainstream, when it was out favor of black people.
名词解释 绿色壁垒 名词解释
单项选择题 公共环境评定中公共建筑物内设施楼梯和台阶应采用有休息平台的直线形梯段和台阶，宽度不应小于1.50m,两侧应设高 0.85m的扶手，直径为（） A、0.015〜0.035m B、0.035〜0.045m C、0.035〜0.065m D、0.045〜0.040m
问答题 保障措施有何特点?
