一 Will somebody go and get Dr. Smith?

一 He's already been _____. [ ]

A. asked for

B. sent for

C. looked for

D. called for

考来替泊的降脂作用机制主要是

A．阻滞胆汁酸在肠道的重吸收
B．抑制脂肪分解
C．增加脂蛋白酶活性
D．抑制细胞对LDL的修饰
E．抑制肝脏胆固醇转化