凝聚作用
参考答案:
是指通过压缩双电层,降低电动电位,促使颗粒发生聚沉的作用。
All of the tickets for two real estate seminars, F and G, were either purchased or given away, and the ratio of F tickets to G tickets was 2 to 1. Of the total number of F tickets and G tickets, what percentage was purchased ?() (1)The total number of F tickets and G tickets is 240. (2)Of the F tickets, exactly 60 percent were purchased, and of the G tickets, exactly 80 percent were purchased.
A.条件(1)充分,但条件(2)不充分.
B.条件(2)充分,但条件(1)不充分.
C.条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D.条件(1)充分,条件(2)也充分.
E.条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
疝手术病人入院时血压150/96mmHg,针对此血压值正确的处理是
A.术前用降压药B.术前不用降压药C.术中用降压药D.术后不用降压药E.术前术后均用降压药