11. The following groups are found in some organic molecules. Which are hydrophilic? (1)－NH2; (2)CH3; (3)－Br; (4)－COOH.
(A)(1), (3)
(B)(2), (4)
(C)(1), (2)
(D)(2), (3)
(E)(1), (4)

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統計： A(2), B(1), C(0), D(0), E(12) #2275857