持卡人对于已取得预授权的交易，可在预授权金额的120%范围内，做支付结算。
参考答案：错
Little ________ about his own safety, though he was in great danger himself.
A．does he care
B．did he care
C．he cares
D．he cared
下列哪一种药物属于动物专用的抗菌药（）
A.氧氟沙星
B.阿奇霉素
C.氟甲砜霉素
D.头孢曲松
E.四环素
