看图片,选句子
A. Easter is in April. B.When is mother's day?
C. Summer vacation is in August. D. My birthday is in December.
E. Do you like school trip?
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已知sin(π+θ)=12,求cos3π+θcoscosπ-θ-1+cosθ-2πsinθ-7π2cosπ-θ-sin3π2+θ的值.
辨字组词。
撕____ 晾____ 载____ 纵____
嘶____ 谅____ 裁____ 从____
厮____ 掠____ 栽____ 丛____