下列句子中句式与其他三项不同的一项是[ ]
A．吾无隐乎尔
B．而谁以易之
C．非夫人之为恸而谁为
D．于斯三者何先
答案：A
— Did you visit Quancheng Square today?
— No. We ______ it, but we spent too much time shopping.[ ]
A. must have visited
B. could have visited
C. must visit
D. could visit
调血脂药物应用原则包括
A．首先采用膳食控制
B．消除恶化因素
C．首选药物治疗
D．对单种药物反应较差，可考虑联合用药
E．不需长期用药
