下列属于特异性免疫的是 [ ]
A.唾液中的溶菌酶杀灭病菌
B.皮肤阻挡致病细菌侵入人体内
C.特定的抗体抵抗相应的抗原
D.吞噬细胞吞噬侵入人体的病菌
答案:C
The hours ________ the children spend in their one way relationship with television people undoubtedly affect their relationships with real-life people.
A.that
B.when
C.in which
D.on which
运用市场比较法估价,选取的可比实例应符合下列条件()。
A.使用性质相同
B.地点相近
C.价格相同
D.交易日期与估价时点相近
E.面积相同