指定账户圈存
参考答案：
是指持卡人通过圈存终端主动发起，将预先与电子现金绑定的借记卡或信用卡中资金（或额度）划入电子现金的交易。
The newly built school canteen(餐厅) is big enough to hold two ________ students at lunch time.
A．thousand
B．thousands
C．thousand of
D．thousands of
毛细血管前阻力增加
