“春蚕吐丝”这一现象发生在家蚕的哪一个发育时期?( ) A.卵 B.幼虫 C.蛹 发布时间:2017-05-22 15:20 │ 来源:www.tikuol.com 题型:选择题 问题: “春蚕吐丝”这一现象发生在家蚕的哪一个发育时期?( )A.卵B.幼虫C.蛹D.成虫
题型:选择题 —I hear that Lily’s brother is a worker here.—Look, the man _________ is working over there is her brother.A.whoB.whomC.whatD.which 查看答案