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题库 / Prep2008E2-SC-222
In 1914 a total of 469,000 cars and trucks were produced in the United States, but in 1929 almost twice the numbers of trucks alone came off the assembly lines.
the numbers of trucks alone
that number of trucks alone
the number of trucks by themselves
as many trucks themselves
as many trucks by themselves
请看讲解视频
首先不应该用themselves，oneself表示某人对自己进行了一个动作，卡车自己不会come off lines，
A vs B，
A：the numbers of trucks核心词是number，in 1929 almost twice the numbers of trucks alone came off the assembly lines翻译过来就是1929 almost twice 469000 alone came off the assembly lines, 缺主语
B：that numbers of trucks核心词是trucks，that numbers指代469000，翻译过来就是1929 almost twice 469000 trucks alone came off the assembly lines
as many表示同样数量的，即469000，twice as many trucks是可以的，错的是themselves
alone可以做副词，修饰形容词twice，表示仅仅是它的两倍
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