【单选题】【消耗次数：1】
电子货币有三大系统构成：信用卡系统、数字现金系统和
①
IC?卡系统
②
POS?系统
③
电子支票系统
④
支付宝系统
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关于传统信用卡支付系统与网上银行卡支付系统的付款授权方式下列论述正确的是（）。
①
前者在购物现场使用手写签名的方式授权商家扣款,后者在使用数字签名进行远程授权??
②
前者在使用数字签名进行远程授权，后者在购物现场使用手写签名的方式授权商家扣款
③
两者都在使用数字签名进行远程授权
④
两者都在在购物现场使用手写签名的方式授权商家扣款
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电子采购系统的构成为（）
①
生产商,商业增值网络中心,供应商
②
供应商,商业增值网络中心,零售商
③
采购商,商业增值网络中心,供应商
④
生产商,商业增值网络中心,供应商
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①
which
②
where
③
that
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as
【单选题】
The monument(里程碑) was built in honor of the explorer who was believed________the river.
①
to have discovered
②
to have been discovered
③
to discover
④
having been discovered
【单选题】
Theearthisabout_______asthemoon.
①
as fiftytimebig
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fiftytimesasbig
③
asbigfiftytimes
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The English is GREAT campaign is intended to recognize outstanding individuals ______,every day and in many different ways,share their passion for the English language.
①
when
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which
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who
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where
【单选题】
The bridge which ________last year looks really beautiful.
①
was built
②
built
③
was set up
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had been built
【单选题】
________work and creative activities have been important drivers of human progress is deeply rooted in our social values.
①
How
②
Whether
③
That
④
Why
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Your notes provide the raw material on _______ your mind has to work in relation to your essay topic.
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where
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when
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what
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which
【单选题】
That day he_______his clothes before he came to see me.
①
has washed
②
washed
③
had been washing
④
was washed