术中体温过低对机体的影响是（）
A.代谢性酸中毒
B.麻醉苏醒延迟
C.术后肺部并发症增加
D.耗氧量增加
E.心律失常
参考答案：A, B, C, E
—I’m not crazy. I really did see a UFO.
—Well. We'll_____ your story.[ ]
A. look into
B. look through
C. look over
D. look up
我国电网调度机构分为几级？
