土地使用权转让是指土地使用者将国有土地使用权再转移的行为，包括______。
A．招标
B．出售
C．交换
D．拍卖
E．赠与
参考答案：B,C,E
— Believe it or not, my sister and I are twins.
— Oh, you must have had the case _____ you were taken for your sister. [ ]
A. which
B. whose
C. where
D. whom
生物活性陶瓷
