钢丝绳磨损后,易于检查,主要是由于()。
A.颜色会发生变化
B.外表会产生许多毛刺
C.外表会产生大量铁锈
D.突然断裂
参考答案:B
Everyone was silent as the judge__________the winner of the artistic gymnastics competition.
A.attracted
B.arranged
C.announced
D.advertised
视盘水肿在临床诊断颅内病变的意义是
A.出现视盘水肿,可肯定颅内有占位病变B.无视盘水肿,可排除颅内占位病变C.视盘水肿,对颅内占位病变性质有鉴别价值D.无视盘水肿,可排除颅内压增高E.视盘水肿,是颅内压增高的重要体征之一