Video: Muaj pes tsawg tus kab mob muaj cov keyboard muaj?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
(1) Lub computer keyboard feem ntau tuaj yeem ua tau muaj 7, 500 kab mob per swb. Daim duab rau lub mloog pob ntseg yog 2, 550 thiab rau hauv qab ntawm lub hnab tes nws yog 2, 520.
Ib yam li ntawd, nws tau nug, uas muaj cov kab mob ntau dua ntawm qhov nruab nrab lub rooj zaum tso quav lossis lub khoos phis tawj keyboard?
Keyboards - Koj keyboard tuaj yeem nyob hauv tsev nyob qhov twg los ntawm peb zaug ntau cov kab mob tshaj li koj rooj zaum tso quav yuav luag peb npaug ntawm cov pej xeem rooj zaum tso quav . Qee qhov kev tshawb fawb pom 3, 000 kab mob ib square inch rau computer keyboards thiab 1,600 nyob rau hauv nruab nrab lub computer mus.
Tom qab ntawd, lo lus nug yog, dab tsi muaj 400 npaug ntawm cov kab mob ntau dua li lub rooj zaum tso quav? Lub rooj nruab nrab muaj 400 zaug ntau dua cov kab mob ntau dua li lub rooj zaum tso quav , kev tshawb fawb tshiab muaj qhia tawm. Kev pom qhov muag tau tso tawm qhia tias yuav ua li cas tus tswv tsev nasties tab tom nyob ntawm qhov rooj ntawm lub rooj thoob plaws lub tebchaws. Kev tshawb fawb tau qhia tawm tias ntau dua ob feem peb ntawm cov neeg ua haujlwm hauv chaw muaj kev pheej hmoo mob vim lub rooj tsis huv.
Tom qab ntawd, lub qhov tso quav tso quav li cas?
Raws li Dr Chuck Gerba, tus xibfwb ntawm microbiology ntawm University of Arizona, muaj 50 tus kab mob ib square inch ntawm rooj zaum tso quav . Feem ntau muaj txog 200 npaug ntau dua cov kab mob faecal ntawm qhov nruab nrab txiav txiav ntau dua li ntawm ib rooj zaum tso quav .”
Vim li cas cov keyboards thiaj qias neeg?
Keyboard Qhov phem tshaj qhov ua txhaum loj rau qhov kev phem no yog cov neeg tsis ntxuav tes tom qab siv chav dej thiab noj zaub mov ntawm lawv lub rooj. Hauv qhov kawg, cov ntiv tes nplaum hloov cov kua ntses thiab cov khoom noj khoom haus mus rau thiab nruab nrab ntawm cov yuam sij.
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