21 What is the main purpose of this passage?
(A)To introduce a customs union among Belarus, Kazakhstan and Russia.
(B)To establish harmonized import tariffs for Belarus, Kazakhstan and Russia.
(C)To launch a customs union among Belarus, Kazakhstan and Russia.
(D)To assess harmonized import tariffs for Belarus, Kazakhstan and Russia
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統計: A(28), B(5), C(1), D(3), E(0) #1709302
統計: A(28), B(5), C(1), D(3), E(0) #1709302