"An independent technician" in the first sentence of the second paragraph means ______.
A.a technician who checks a car free of charge
B.a technician who learned his trade all by himself
C.a technician who works for a particular car-dealer
D.a technician who runs his own inspection service
第5题
肾炎性水肿易出现于
A、眼睑、颜面
B、胫前、足踝
C、阴囊、会阴
D、胸腔、腹腔
E、背部、骶部
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