肾上腺皮质激素所致的骨质疏松症应使用的药物是（）
A．激素替代治疗
B．维生素D
C．“三联药物”治疗
D．PAE
E．双磷酸盐
参考答案：E
Have a glass of water, please. You _____ be thirsty after a long walk. [ ]
A. should
B. must
C. can
D. have to
