96. Education is ___for the development of a country.
A indispensable B accountable
C deliberate D deficient 选A
indispensable a.不可缺少的 n,不可缺少之物 (重点高频词汇,可用于作文)
accountable 可计算的
account for 解释,占多大比重
solar system 太阳系
expand 膨胀
black hole 黑洞
gravity 重力
balance 平衡
collapse 崩塌
在霍金理论,太阳系(solar system )是不断膨胀的(expand )。一个是向外膨胀的力,
一个是向内的重力 (gravity)这两个力必须平衡(balance),这样这个太阳系才能存在
如果内部的核聚变和核裂变到最后完全爆炸用完了,向外膨胀的力没有了,向内的重力还存在,
这样向里收缩,整个太阳系出现崩塌(collapse )的现象,这是最初的现象,接着出现黑
洞(black hole) 或是其他的一些结果。
collapse 崩溃,坍塌
elapse 的向一个地方滑过就是坍塌(collapse )。时间的流逝
(elapse)也是这个感觉。lapse 本身是堕落。(re)再次堕落(lapse), 还有一个意思旧病复发。
delibrate 故意的,深思熟虑的
intention 故意,意图,目的
intentional 故意的
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