下列物质导电性能最差的是[ ]
A.熔融的氢氧化钠
B.石墨棒
C.盐酸溶液
D.固态氯化钾
答案：D
— Please don’t make a noise.
— ________ . I’ll be as quiet as a mouse.
A．Yes, I do
B．No, I don’t
C．Yes, I will
D．No, I won’t
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