Several pages were found _________ when the book _________ me.

A．missing; returned

B．gone; was returned to

C．lost; was returned

D．disappeared; was returned to

下列对于世界区域地理特征的描述，正确的是[ ]

A．东南亚地处“十字路口”，是华人、华侨集中的地区

B．中东地区石油资源匮乏，水资源丰富

C．欧洲西部以单一商品经济为主

D．美国农业落后，工业发达