题目内容
It is surprising that you don’t know about such a(n) ________ event. It marked the beginning of a new period for our nation.
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They hoped to create a computer which could __________ at l0 times the speed of computers on the market.
Education is a(n) ____________ learning process that never ends. A teacher has the responsibility of making students think for themselves by giving effective guidance.
On the one hand, we should make efforts to improve the economy ; on the other hand, we must keep a balance between ___________ development and environmental protection.
Some successful people managed to gain _______and fortune even though they dropped out of school.
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