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A Red and green light, B if mixing, C in the right proportion, D will give us yellow.
A Red and green light, B if mixing, C in the right proportion, D will give us yellow.
admin
2017-07-18
50
问题
A
Red and green
light, B
if mixing
, C
in
the right proportion, D
will give
us yellow.
选项
A、
B、
C、
D、
答案
B
解析
应改为mixed。因为mix和主语“red and green light”是动宾关系,因此要用过去分词。if mixed=if they are mixed。本句的意思是:“红光、绿光混合到一起,如果比例正确的话,就会呈现黄色。”
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本试题收录于:
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