无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

單項(xiàng)選擇題

In general , the amount that a student spends for housing should be held to one-fifth the total()for living expenses.

A.acceptable
B.available
C.advisable
D.applicable

微信掃碼免費(fèi)搜題