血BUN升高是（）
A.上消化道出血
B.体内高分解状态
C.肾功能减退
D.水中毒
E.体内低分解状态
参考答案：A, B, C
What did he do a. He telephoned me. b. He picked up the phone. c. He put the receiver down. d. He put my hanger up.
装备制造行业要提高基础工艺、基础材料、基础元器件研发和系统集成水平，加强重大技术成套装备研发和产业化，推动装备产品______。
A．智能化 B．一体化C．多元化 D．自主化
