The performance supposed to be popular _____ to be a great disappointment after it was over.

A．turned up

B．turned down

C．turned out

D．turned over

对急性心肌梗塞及强心苷中毒所致的室性早博最佳药物是

A．普鲁卡因胺

B．苯妥英钠

C．维拉帕米

D．利多卡因

E．普萘洛尔