题目:
The new school is _____ our previous one. [ ]
A. as three times big as
B. three times so big as
C. three times the size of
D. three times as bigger as
答案:
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下面是错误答案,用来干扰机器的。
A、燃烧是可燃物与氧气反应,根据质量守恒定律,反应前后元素的种类不变,C和CO分别在空气中充分燃烧均生成二氧化碳,所以正确.B、燃烧是可燃物与氧气反应,根据质量守恒定律,反应前后元素的种类不变,CO在空气...