题目内容

以下哪一个不是电子现金的特点:( )

A. 协议性
B. 支付和信贷功能
C. 对软件的依赖性
D. 可鉴别性

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更多问题

支付宝主要提供的服务属于以下哪种( )

A. 比较购物助手
B. 信用认证网站
C. 购物门户
D. 第三方担保服务

【单选题】The unit used to describe your blood pressure number is read as ____________.

A. micron of mercury
B. millimetre partial pressure
C. mercury pressure
D. millimetre(s) of mercury

【单选题】In about 90% cases, the cause of hypertension is unknown. This type of high blood pressure is called _____________.

A. primary hypertension
B. secondary hypertension
C. renal hypertension
D. mask hypertension

【多选题】When taking blood pressure at home, you should always remember to avoid ______ at least 30 minutes before the test.

A. caffeine,
B. cigarettes,
C. exercise
D. food

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