储蓄会计凭证的传递，必须做到准确及时、手续严密、先外后内、先急后缓。储蓄业务的帐务组织包括明细核算和综合核算两个系统。
参考答案：对
A new kind of drug ___ ___ to cure H7N9 bird flu by the scientists and they are hopeful that they will succeed in a couple of weeks.
A．has been developed
B．is being developed
C．is developing
D．has developed
被叫优惠易查询
