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若不考虑地形起伏,某人从赤道出发,依次朝正东、正南、正西、正北走100千米,最后回到( )
5个月前
My aunt ____ letters to her son many years ago. But now she ____ emails to her son. ( )
7个月前
如图,点P是菱形ABCD的对角线BD上一点,连接CP并延长,交AD于E,交BA的延长线于点F. (1)求证:∠DCP=∠DAP; (2)如果PE=4,EF=5,求线段PC的长
10个月前
1年前
My father is __________ (please) with my school work this year.
1年前