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—Why don’t you join us in the game? —Because my homework _____ yet.
9个月前
A: Susan, did you hear the news? B: No, I didn’t. What was ____1____.
1年前
Look at the ______, sir. The white shirt is larger than the yellow one.
1年前
1年前
已知tana=3,求下列各式的值 1.sina+cosa/sina-cosa 2.sina.cosa 3.sin^2 a+sina.cosa
1年前