根据充气方式的不同,机械搅拌式浮选机又分为()浮选机和()浮选机。
参考答案:机械搅拌自吸式;机械搅拌充气式
患者左眼险下垂,眼球外斜视,右侧中枢性偏瘫,病变于
A.左侧脑桥
B.右侧脑桥
C.左侧中脑
D.右侧中脑
E.左侧脑桥及中脑
She is optimistic about everything, but she ______ be very frustrated as well. [ ]
A. could
B. will
C. should
D. can