中国古人以兰花象征______。
A．洁净无瑕 B．人品清逸、气节高尚 C．幽居隐士 D．坚强和长寿
参考答案：C
They ___ the game.
A．are disappointed at losing
B．disappoint
C．are disappointing
D．are disappointed
导致渗透性利尿的因素是
A．静脉注入甘露醇B．静脉注入0.9%NaCl溶液C．静脉注入5%葡萄糖溶液D．大量饮清水E．大量饮生理盐水
