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【单选题】

Which of the following were first to take Hamburgers to America

A.
Russian sailors.
B.
German Sailors.
C.
Russian immigrants.
D.
German immigrants.
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参考答案:
参考解析:
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举一反三

【单选题】为了防治计算机病毒,应采取的正确措施之一是

A.
每天都要对硬盘和软盘进行格式化
B.
必须备有常用的杀毒软件
C.
不用任何磁盘
D.
不用任何软件

【单选题】Nowadays e-tailers have ______

A.
developed their own unique sales system
B.
formed a viable sales channel themselves
C.
become a part of the whole retailing strategy
D.
established their own reasonable supermarket

【单选题】心理健康是指一个人能够具有

A.
正常的心理状态
B.
健康的身体条件
C.
完好的人际关系
D.
积极的心理活动
E.
良好的环境适应功能