These _________ my shoes here.[ ]
A. am
B. is
C. are
答案：C
There are ______ books in the reading room. [ ]
A. hundred of
B. hundreds of
C. two hundreds
D. two hundred of
下列哪项不是急性胰腺炎腹痛的特点？（）
A．多发生在饭后3小时，渐进性加重
B．呕吐后腹痛不减轻
C．疼痛部位大多在上腹中部，可向腰背部放射
D．疼痛大多呈阵发性加剧
E．多有中度发热
