电磁波是能量的一种。( )
参考答案：对
We are in receipt of your letter of 1 st September, in forming us of the establishment of your L/C No. 894 ______ our S/C No. 90US9094.
A．against
B．under
C．covered
D．on
治疗室性心律失常的药物是( )
A．胺碘酮B．普罗帕酮C．美多心安D．莫雷西嗪E．利多卡因
