—Do you know why the teacher asks for me?
—He wants you to _____ your absence last night.
A:account for
B:call for
C:send for
D:reach for
浏览课文《小树死因调查报告》,看看调查报告由哪几部分组成?
华枝睾吸虫身体上最发达的器官是( )