外科专用手锯
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—I don't know what to bring to her birthday party,
—Why not take some flowers. They are ____ the party. [ ]
A. suitable for
B. suitable of
C. suit for
和自然环境打交道,就应该遵守一定的规范。人类应该首先学会遵守的规范是[ ]
①保护自然②节约资源③保护环境④远离自然
A.①②
B.②③
C.①②③
D.①②③④