两侧
Young boys and girls stood on _____ sides of the street to welcome the president from Africa.
Young boys and girls stood on \_\_\_\__ sides of the street to welcome the president from Africa.
防震缝两侧结构类型不同时,宜按需要较宽防震缝的结构类型和较低房屋高度确定缝宽
防震缝两侧结构类型不同时,宜按需要较宽防震缝的结构类型和较低房屋高度确定缝宽A