TPO12 有声电影 两道题求教

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Beyond that, the triumph of recorded sound has overshadowed the rich diversity of technological and aesthetic experiments with the visual image that were going forward simultaneously in the 1920s. New color processes, larger or differently shaped screen sizes, multiple-screen projections, even television, were among the developments invented or tried out during the period, sometimes with startling success. The high costs of converting to sound and the early limitations of sound technology were among the factors that suppressed innovations or retarded advancement in these other areas. The introduction of new screen formats was put off for a quarter century, and color, though utilized over the next two decades for special productions, also did not become a norm until the 1950s.

21，According to paragraph 3, which of the following is NOT true of the technological and aesthetic experiments of the 1920's?

想知道这个为什么是对的：The new technological and aesthetic developments of the 1920s included the use of color, new screen formats, and television.

28，六选三，有个正确选项是Because of intense interest in developing and introducing sound in film, the general use of other technological innovations being developed in the 1920s was delayed.相关的段落应该也是这个，因为阻碍其他创新全文只此一处。这个对了吗？

ifevery1caredUID：3447481

ifevery1caredUID：3447481

轩漠 发表于 2014-4-26 14:10
建议下最新版的tpo。。。。
21 不对的是because the cost blabla，low。 原文说是high 这个太明显了。你说 ...

阻碍的原因不是对声音的兴趣吧，应该是声音技术的落后

ifevery1caredUID：3447481

轩漠 发表于 2014-4-26 14:10
建议下最新版的tpo。。。。
21 不对的是because the cost blabla，low。 原文说是high 这个太明显了。你说 ...

还有21里的这个不选的项里面format和color的创新发生时间在原文中并不明确。至少我无法想出为什么它们一定不会是30年代发生的事。1955-25=1930吧？