下列哪项是缺铁性贫血表现
A．牙龈出血
B．发热伴大量出汗
C．骨骼疏松
D．毛发无光泽及“反甲”
E．皮肤紫癜
参考答案：D
His father looks young, but in fact he is ______.
A．in the forties
B．in his forties
C．in the forty
D．in his forty
饭店客房服务项目的设立，既要考虑客人的需求，同时还要考虑饭店的档次，即遵循适合与（）的基本原则。
A.个性
B.适度
C.档次
D.规范
