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______ many times, this radio receiver is found very sensitive.A、Being testedB、
______ many times, this radio receiver is found very sensitive.A、Being testedB、
游客
2023-11-22
24
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问题
______ many times, this radio receiver is found very sensitive.
选项
A、Being tested
B、Having been tested
C、Having tested
D、Testing
答案
B
解析
语法结构题。本句的难点是:完成时的现在分词形式在本句中作时间状语,表明测试的时间在发现灵敏度很高之前,being tested不能够表达这一含义,而having tested 和testing动作的主体和逻辑主语为人,造成时间状语的逻辑主语和主句的主语不一致,故只能选B 。本句的意思是:经过多次测试以后,发现这台无线电接收机的灵敏度很高。
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