电铲的小修必须进行除垢、防锈、涂漆工作。
参考答案：错
Our classmates who prefer to hold a party for him are________the majority.[ ]
A. at
B. in
C. on
D. to
I don't have _______ ruler. He has _______.[ ]
A. a; a
B. one; one
C. a; one
D. one; a
