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
脉来重按推筋着骨始得,甚则伏而不显,是()
A.牢脉
B.革脉
C.紧脉
D.弦脉
E.伏脉
—He is a very brave man.
—So he is. I wish I ________ his courage.[ ]
A. had
B. have
C. will have
D. shall have