基金管理人不可以向基金份额持有人违规承诺收益或者承担损失。 ( )
参考答案：对
It just isn’t fair that____I was working as a waiter last month, my friends were lying on the beach.
A．while
B．whenever
C．though
D．for
兴奋性突出后电位是突触后膜对哪种离子的通透性增加引起的
A．K+和C2+B．Na+和K+，尤其是K+C．Na+和K+，尤其是Na+D．Na+和Ca2+E．Cl-
