浮球式液位计是根据()原理制成的。
参考答案:恒浮力
—It's said that you have moved into a new house.
—Yeah, and we need to buy some _____ in the mall nearby. [ ]
A. food
B. furniture
C. hamburgers
D. vegetables
由银行或专营机构签发,凭以向特约单位购物、消费和向银行存取(),具有消费信用的特制载体卡片,就是信用卡。
A、汇票
B、现金
C、现金支票
D、转账支票