椎管内麻醉时神经纤维被阻滞的顺序是（）。

A.温觉、痛觉、触觉、运动、压力、血管舒缩神经

B.血管舒缩神经、温觉、痛觉、触觉、运动、压力

C.血管舒缩神经、痛觉、触觉、温觉、运动、压力

D.血管舒缩神经、运动、温觉、痛觉、触觉、压力

E.运动、血管舒缩神经、温觉、痛觉、触觉、压力

According to AIMR Standards of Professional Conduct Standard, which of the following activities violates Standard Ⅳ(B), Priority of Transactions An analyst:（）

A. buys shares for his personal account after all the firm’s clients have been informed and their trades completed.

B. buys stock for his own account on a personal instinct while not doing so for his clients.

C. makes trades for his firm’s account before handling the client trades.