单项选择题

A．He was the first person to appear on television.
B．It was he who discovered the wonder o~ television.
C．He made the very first step towards the invention of television.
D．He developed the television and was the first person to demonstrate it.
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单项选择题
A．Helping the needy to survive.B．Sharing risks of possible losses.C．Being compulsory in most countries.D．Covering differently according to different situations.
A．Helping the needy to survive.
B．Sharing risks of possible losses.
C．Being compulsory in most countries.
D．Covering differently according to different situations.
单项选择题
A．Everyone understands Einstein’s theory today.B．Einstein achieved more than any other scientists in history.C．The Theory of Relativity can be quickly learned by everyone.D．Our ideas about the universe are different today because of Einstein.
A．Everyone understands Einstein’s theory today.
B．Einstein achieved more than any other scientists in history.
C．The Theory of Relativity can be quickly learned by everyone.
D．Our ideas about the universe are different today because of Einstein.
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