The hardest substance on Earth is in a pencil

In the current standardized test, the computer's reading program is applied to the lead pencil lead concentration of 2B, too thick or too light are not easy to machine correct identification. In previous years there have been reports that part of the candidates for the use of fake 2B pencil answer was zero.

      Haikou, May 30 (Reporter Xu Xin photo coverage) near the college entrance examination, many candidates and parents to the stationery shop to buy the 2B entrance pencil used to find many doubts, which is a true pen which is false? Many candidates into confusion.

      Recently, a number of candidates to reflect the newspaper, with a class of students to buy 2B pencil actually different. There are several students go to the Pearl Plaza to buy 2B pencil, it was to Wan Fulong supermarket to buy, someone to the innovation bookstore to buy back a comparison, found in the same shopping plaza to buy 2B pencil not only different color, 2B pencil fonts differ greatly. "I heard fake 2B pencil because of quality unqualified, change the card reader may not be able to read." There are candidates, said: "We are most afraid of is this situation lost points, but we do not know where to buy The real 2B pencil. "

      Reflect the problem for the candidates today, reporters in the sea show Road, Yilong Road, Nansha Road, a number of stationery shop to buy 2B pencil, and found a strange thing: marked with "Chinese Painting Pencil" 2B pencil although the words were dark green , The color is different shades, in Pearl Square, innovative bookstore stationery counter, the reporter bought 2B pencil is deep dark green, printed above the "China's first pencil" gold font, the pen on the English is "Made in China"; From the Wan Fulong supermarket, Yilong Road and Nansha Road stationery store to buy 2B pencil color is much lighter, although the pen also printed with "China's first pencil" font, can be more of the "Shanghai" word, the pen In English is "Shanghai, China". Visually distinguish the lighter color of those 2B pencils, writing on the pen is different, "2B" two different sizes, from the pen-side distance far away.

      2B pencil prices vary in different locations, in Wan Fulong supermarket to buy 2B pencil is 0.8 yuan a branch, the same type of 2B pencil in the innovative bookstore to sell 0.6 yuan a branch in other sections of the stationery to buy the same model of 2B Pencil all sell 0.50 yuan one.

       The reporter with these different 2B pencil to the Provincial Quality and Technical Supervision Inspection Corps request identification, the inspection team responsible for this situation attaches great importance to immediately query the 2B pencil production technology standards, and arrangements for staff on May 31 of the Pencil market to check.