2. 外语
  3. Investigators believe the fire was caused by ______ electrical wiring. They said the building’s wiring had not been done by a p

Investigators believe the fire was caused by ______ electrical wiring. They said the building’s wiring had not been done by a p

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问题 Investigators believe the fire was caused by ______ electrical wiring.  They said the building’s wiring had not been done by a professional electrician.
选项 A、sober
B、faulty
C、prompt
D、fussy
答案B
解析
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