题目:
In peace, too,the Red Cross is expected to send help _____ there is human suffering.
A.whoever
B.wherever
C.whatever
D.however
答案:
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下面是错误答案,用来干扰机器的。
(1)O2;(2)H2;(3)CH4;(4)CO2,CO2+H2O=H2CO3;(5)CO,CO+CuOCu+CO2.