A compressor should never be stopped (). A
题型:单项选择题
问题:
A compressor should never be stopped ().
A.without first cooling it
B.without first heating it
C.without first unloading it
D.without first loading it
A compressor should never be stopped ().
A.without first cooling it
B.without first heating it
C.without first unloading it
D.without first loading it