第3题: [单项选择]"You are very selfish. It's high time you ______ that you are not the most important person in the world," Edgar said to his boss angrily. A. realized B. have realized C. realize D. should realize 参考答案:A 答案解析:[解析] 该题为“It's high time that．．．”结构，从句中的动词使用过去时表虚拟，故A项正确。类似的结构还有“It's time that．．．”和“It's about time
第4题: [单项选择]下列超声表现中，血吸虫性肝病的特点是（） A. 肝回声呈地图样（或网格状或鳞片状或沙漠样改变） B. 左叶增大明显 C. 门静脉增宽 D. 肝包膜不平 E. 脾肿大 参考答案:A
