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He thought he was helping us with the work, he was actually in the way.
1年前
Must we leave the classroom now?
1年前
As a student, I can’t afford __________ a new mobile phone.
1年前
As the income is increasing,the________of family life has been changing over recent years. [ ]
1年前
先化简,再求值.a﹙3-a﹚²+2a²﹙a+1﹚-3a﹙2a-5b+1﹚,其中a=-1,b=2.
1年前