A:①②
B:①②④
C:②③④
D:①②③
科技改变世界,科技引发革命。回望历史,可见一次次科技革命,改变人类生产方式、生活方式,引起国家力量兴衰演变。
欧美篇
Peter's father often watches basketball games __________ TV.
Tim is a worker, _______ he really wants to be a writer.
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