强心苷类化合物（）
A、为甾体苷类
B、分子中有不饱和内酯环
C、易溶于氯仿中
D、易溶于乙醚中
E、可被碱催化水解
参考答案：A, B, E
How I wish I ___________ you ___________ there, too yesterday!
A．knew; were
B．had known; were
C．knew; had been
D．had known; had been
糖尿病病人均应严格采取的治疗措施是
A．运动疗法
B．口服降糖药
C．心理护理
D．控制饮食
E．胰岛素治疗
