合并糖尿病的高血压患者治疗应首选（）
A.强心剂
B.β2受体激动剂
C.α受体阻滞剂
D.β受体阻滞剂
E.血管紧张素转换酶抑制剂
参考答案：E
— Dad, can we go to the shop?I want to buy some sweets.
— _______.Can't you see I'm busy at the moment?[ ]
A. Take it easy
B. No problem
C. Forget it
D. Don't mention it
《民法通则》规定普通诉讼时效的期间为( )年。
A．1
B．2
C．3
D．4
