To his surprise, the electric current flows through a conductor ____________(就好像

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问题 To his surprise, the electric current flows through a conductor ____________(就好像液体一样).

选项

答案 as though/if it were a fluid

解析本题考查点是as though/if跟虚拟语气的用法，此句表示与客观事实相反，从句用一般过去时。注意as though/if有时后面的成分并不表示虚拟，要具体情况具体分析。

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