50.________ allowing people to buy single shoes, once a season the single shoes bank gives unwanted single shoes to members for free.
(A) Before
(B) On the contrary
(C) By taking chance
(D) In addition to
詳解 (共 2 筆)
未解鎖
若選A, 文意不順。因為後面直接是動詞a...
未解鎖
-除了允許人們購買單隻鞋以外，每個季節都...
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