磁性材料球磨机主要由()、端盖、轴承、传动大齿圈等组成。
参考答案:筒体
—I'm so happy that you could come to England with us for the holiday.
—_______. It's the first time for me to be out of China.[ ]
A. I think not
B. Me, too
C. Thank you
D. All right
有关血栓的论述,错误的是
A.静脉血栓多于动脉血栓B.毛细血管内血栓多为白色血栓C.动脉瘤内血栓多为混合血栓D.静脉内血栓尾部多为红色血栓