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【判断题】
轴承润滑的目的在于降低摩擦功耗,减少磨损,同时还起到冷却、吸振、防锈等作用。( )A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】When I came into the classroom this morning, it ______ me that I had left my book in my dormitory.
A.
occurred
B.
was occurred
C.
occurred to
D.
was occurred to
【单选题】My father was reading a book ________ I was doing my homework.
A.
before
B.
after
C.
when
D.
while
【简答题】The book is __________. I wrote __________ name on its cover __________. a. my; my; myself b. mine; my; myself c. mine; myself; my d. myself; mine; my
【单选题】The book is ______. I wrote ______ name on its cover ______. [ ]
A.
my; my; myself
B.
mine; my; myself
C.
mine; myself; my
D.
myself; mine; my
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