Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 có lời giải chi tiết (Đề 9)

Which of the following is NOT true according to the passage? A. Pure water is much more conductive than most water we encounter every day. B. Graphite is a common solid substance that can con

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Which of the following is NOT true according to the passage?

Pure water is much more conductive than most water we encounter every day.

Graphite is a common solid substance that can conduct electricity.

Salt can conduct electricity when it is molten or dissolved.

Some materials are more conductive than others.

Giải thích

Chọn A