单选题
Which of the following are not expected within the next 5 years?
A、
Talking on giant screens.
B、
Automatic language translators.
C、
Computers that respond to brain waves.
D、
Computers that do not need wires.
【正确答案】
C
【答案解析】
选项A、B、D可在第二、第三、第八段找到。
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