题目内容
(请给出正确答案)
[主观题]
John asked his mother to ______ the hole in the pocket of his jeans.A.fillB.fixC.mendD.rep
John asked his mother to ______ the hole in the pocket of his jeans.
A.fill
B.fix
C.mend
D.repair
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John asked his mother to ______ the hole in the pocket of his jeans.
A.fill
B.fix
C.mend
D.repair
第3题
对于热敏性物料的粉碎常采用的方法是
A、研钵
B、胶体磨
C、球磨机
D、流能磨
E、冲击式粉碎机
第5题
对于热敏性物料的粉碎常采用的方法是
A、研钵
B、球磨机
C、冲击式粉碎机
D、流能磨
E、胶体磨
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