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【多选题】
沿着世界市场的发展脉络,我国同世界的关系也经历了以下三个阶段:A.
鸦片战争前后从闭关锁国到半殖民地半封建阶段
B.
新中国成立后到“文革”时期的“一边倒”和封闭半封闭阶段
C.
抗日战争阶段
D.
改革开放以来的全方位对外开放阶段
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举一反三
【单选题】No conclusion _______ about whether to tear down the old buildings for a theme park until several discussions have been made．
A.
will be reached
B.
is reached
C.
is being reached
D.
had been reached
【单选题】在数据库设计中,用 ER 图来描述信息结构,但不涉及信息在计算机中的表示,它属于数据库设计的 () 阶段 。
A.
需求分析
B.
概念设计
C.
逻辑设计
D.
物理设计
【单选题】Some birds can make several different sounds, each with meaning ______.
A.
the same
B.
two
C.
different
【单选题】听力原文：M: Since you have visited so many countries, you must be able to speak several different languages. W: I wish I could. But French and German are the only foreign languages I have ever learned to ...
A.
She hasn't learned French.
B.
She can speak several foreign languages including French.
C.
She can speak both German and French.
D.
She speaks neither French nor German.
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