电位分析中影响电极电位的主要因素是（）。
A.参加电极反应的离子浓度
B.温度
C.转移电子数
D.电极长度
参考答案：A, B, C
— Why didn't Tom give you one of his paintings?
— I didn't want one, but he would have given me one if I ____. [ ]
A. did
B. had
C. would
D. could
患者女性，36岁，孕33周，胎儿腹部横切面显示腹壁皮肤层回声中断，肠管及部分肝脏向腹腔外突出并漂浮在羊水内，最正确的诊断是（）。
A.脐疝
B.脐膨出
C.腹裂畸形
D.中肠疝
E.肠管外翻畸形
