单项选择题

A.
B.
C.
D.

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单项选择题

The principal reason for the extremely low solubility of NaCl in benzene (C6H6) is the __________.

A．strong solvent-solvent interactions
B．hydrogen bonding in C6H6
C．strength of the covalent bond in NaCl
D．weak solvation of Na+ and Cl- by C6H6
E．increased disorder due to mixing of solute and solvent