题目

句型转换。【1】Do you know these countries? (否定回答)_______________________________________________________【2】I’d like to go to Yunnan. (一般疑问句)________________________________________________________【3】Lily’s aunt can speak Russian.(对划线部分提问)________________________________________________________【4】Santa’s name was written on the corner.(对划线部分提问)________________________________________________________【5】There are 13 stripes on the American flag. 对划线部分提问)_____________________________________________如图,为了求出湖两岸A、B两点之间的距离,观测者从测点A、B分别测得∠BAC=90°,∠ABC=30°,又量得BC=160 m,则A、B两点之间的距离为       m(结果保留根号)
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