为防止冬季碱液结晶,可设计碱罐内通蒸汽措施。()
参考答案:错
I can't imagine how he finished the relay race, ______ his foot wounded so seriously.[ ]
A. as
B. for
C. with
D. because of
用500V兆欧表测试发电机绕组间、绕组对地的绝缘电阻,应符合厂家说明书的规定,无规定时,应大于2兆欧。()