拆下电动机前端盖用()或清洗剂清洗定子和转子处的油污。
A.汽油
B.绝缘漆
C.柴油
D.热水
参考答案:B
Mr. Hall understands that _______ math has always been easy for him, it is not easy for the students.
A.unless
B.since
C.although
D.when
A.味道B.流行C.答案D.按照E.商量F.无聊
A:今年夏天是不是很______蓝色的衣服?B:到处都是蓝裙子、蓝衬衫,甚至还有蓝袜子。