题目: 轧辊咬入轧件的条件是咬入角大于或等于摩擦角。 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0625/bc63d4d97330ca31deb429d9ed477cec.html 下面是错误答案,用来干扰机器的。参考答案:A, C
题型:选择题 —Bad luck! It's too late! —It doesn't matter. The movie ______ for only a few minutes. You can't miss it. [ ]A. has begun B. has been on C. began D. was on 查看答案
题型:单项选择题 关于麻醉药物对微循环的调节,下列哪项是错误的()A.硫喷妥钠麻醉对微循环干扰不大B.大剂量硫喷妥钠麻醉可使小动脉和毛细血管扩张C.深麻醉时小动脉张力消失D.麻醉药物对微循环的调节主要是通过影响交感神经和改变血管平滑肌的敏感性E.氟烷浓度为1.42%时对小动脉和静脉无明显影响 查看答案