C.became D.did he become 江苏-2012-39.Perhaps the most significant postwar trend was the decentralization of cities throughout the United State, when massive highway-building programs permitted greater suburban growth.
A.and accelerated a phenomenon
B.a phenomenon that accelerated
C.accelerating a phenomenon which
D.the acceleration of which phenomenon
江苏-2012-40.On January 7, 1955, Marian Anderson became to sing a major role at New York City’s Metropolitan Opera House.
A.the first African American
B.the first African American was
C.she was the first African American
D.when the first African American
江苏-2012-41.Recent studies suggest that the human brain continues to change through the process of evolution. The findings conflict which a common belief that the brain has evolved about as much as it ever will.
A.最近的研究指出，人类的大脑通过进化过程在继续改变。这一发现同人们普遍接受的大脑进化已经停止这一信念相冲突。
B.最近的研究指出，人类的大脑通过进化仍在继续改变。这一发现同人们普遍接受的大脑进化已经停止这一信念相冲突。
C.最近的研究指出，人类的大脑通过进化过程在继续改变。这一发现与一般人认为的大脑进化已经停止这一观点自相矛盾。
D.最近的研究指出，人类的大脑通过进化过程在继续改变。这一发现同人们一致接受的大脑进化已经停止这一信念相冲突。
江苏-2012-42.The primary reason for connecting national electricity supplies is that, while peak demand occurs during the daytime, all countries are not in daytime at the same time.
A.要将国家电源供应连接起来的原始动机是，如果白天出现用电高峰，意味
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