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【多选题】
关于购物车的设计,下列说法正确的是( )。A.
购物车按钮的颜色适用红色或黄色
B.
一般只需提供加入购物车功能，不需要立即购买功能，结账时进入购物车交易即可
C.
在部分页面中,有了“立即购买”按就无需“放入购物车”按了
D.
购物车功能应该始终显示在页面上
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举一反三
【单选题】Helen always arrives late. S he, ______, was the last one to arrive yesterday.
A.
a t once
B.
as usual
C.
at last
【单选题】听力原文：M: I saw Jason yesterday.He invited us to dinner tonight. W: That's so nice.But I really don't know him and besides,I have so much work to do. Q: What does the woman mean? (19)
A.
She doesn't like Jason.
B.
She would prefer not to go.
C.
Jason is always a nice man.
D.
She would like to go.
【单选题】He wants all countries in the Group of Twenty to coordinate their separate efforts to strengthen their economies.
A.
他呼吁所有二十国集团国家把他们分散的努力协调起来壮大他们的经济。
B.
他要二十国集团国家共同努力把他们分散的资源协调起来加强经济实力。
C.
他呼吁二十国集团中所有成员国家集中力量，共同致力于加强集团国的经济建设。
D.
他让二十国组织所有国家统一，独立行事，加强经济合作。
【单选题】In 2008 and 2009, the _____ became the forum though which major nations attempted to launch a coordinated policy response to the global financial crisis, which started in America. 2008年和2009年,这个论坛成为主要...
A.
GATT关贸总协定
B.
Group of Ten (G20)十国集团(G20)
C.
Group of Twenty (G20)20国集团(G20)
D.
World Trade Organization世界贸易组织
【简答题】设字长为8位，写出x=-，y=-66的原码、反码和补码，并且用补码计算x+y，问是否有溢出？
【单选题】The G20tx was originally established to _____. G20tx最初是为了......而建立的。
A.
preserve peace through international cooperation and collective security通过国际合作和集体安全维护和平
B.
maintain order in the international monetary system维护国际货币体系秩序
C.
formulate a coordinated policy response to financial crises in developing nations为发展中国家应对金融危机制定协调一致的政策
D.
manage, regulate, and police the global marketplace管理、规范和监督全球市场
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