36.
Touch receptors are spread over all parts of the body, but they are not spread evenly. Most of the touch receptors are found in your fingertips, tongue, and lips.
(A) But if the fingers are spread far apart, you can feel them individually. Yet if the person does the same thing on the back of your hand (with your eyes closed, so that you don’t see how many fingers are being used), you probably will be able to tell easily, even when the fingers are close together.
(B) You can test this for yourself. Have someone poke you in the back with one, two, or three fingers and try to guess how many fingers the person used. If the fingers are close together, you will probably think it was only one.
(C) On the tip of each of your fingers, for example, there are about five thousand separate touch receptors. In other parts of the body there are far fewer. In the skin of your back, the touch receptors may be as much as 2 inches apart.
37.
One interesting feature of network markets is that “history matters.” A famous example is the QWERTY keyboard used with your computer.
(A) Replacing the QWERTY keyboard with a more efficient design would have been both expensive and difficult to coordinate. Thus, the placement of the letters stays with the obsolete QWERTY on today’s Englishlanguage keyboards.
(B) You might wonder why this particular configuration of keys, with its awkward placement of the letters, became the standard. The QWERTY keyboard in the 19th century was developed in the era of manual typewriters with physical keys.
(C) The keyboard was designed to keep frequently used keys (like E and O) physically separated in order to prevent them from jamming. By the time the technology for electronic typing evolved, millions of people had already learned to type on millions of QWERTY typewriters. [3점]
* obsolete: 구식의 ** configuration: 배열
① (A) - (C) - (B) ② (B) - (A) - (C)
③ (B) - (C) - (A) ④ (C) - (A) - (B)
⑤ (C) - (B) - (A)
to keep frequently used keys (like E and O) physically separated;5형식
By the time the technology for electronic typing evolved : 부사절
By the time(=when)
