使用胺类捕收剂时,若矿浆中含有大量矿泥,则药剂消耗(),浮选效果()。
A、增加;下降
B、减小;增强
C、增加;增强
参考答案:A
腮腺内神经血管排列分为纵行和横行两组,不属于纵行组的是()
A.面神经
B.耳颞神经
C.颞浅静脉
D.下颌后静脉
E.颈外动脉
— How did you go home last night?
— Mr Green offered to give me _____ when he came _____ me. [ ]
A. riding; by
B. a ride; off
C. a ride; by