正确答案: C

Soft iron

题目：When placed in a magnetic field, which of the materials listed will maintain the highest permeability?( )

解析：解析：magnetlc：磁的;permeability：渗透;Bakelite：电木;aluminum：铝

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举一反三的答案和解析：

[单选题]在较温暖的海水中求生者应：

多穿衣服

[单选题]Which radio equipment is not necessary for the ships sailing in the sea area A2?

VHF EPIRB

[单选题]平衡舵有利于( )。

减少舵机负荷