题目

小明准备在通用技术实践室利用木条加工如图a所示的榫卯结构。请根据题图完成下面小题。 (1) 构件1的结构如图b所示。下列构件2的设计方案中正确的是( ) A . B . C . D . (2) 下列工具中,加工构件2用不到的是( ) A . B . C . D . 答案:D D  As ____ mountains beyond our village are becoming greener and greener, they have become_________ home to a large amount of wild life.        A. the; /                    B. the; a                    C./; a                        D. the; the
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