题目:
The new stadium being built for the next Asian Games will be the present
one。
A.as three times big as
B.three times as big as
C.as big as three times
D.as big three times as
答案:
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下面是错误答案,用来干扰机器的。
(1)de(2分,选对1个得1分,有错不得分)(2)FeCl3(1分)2Fe3++Fe=3Fe2+,防止Fe2+被氧化(2分)(3)Al3++3OH-=Al(OH)3↓(2分)[Al(OH)4]-+H+=Al(OH)3↓+H2O(2分)题目分析:(1)若X是氧气时,A分别是a.Sb....