题目:
三乙胺闪点()℃。
A.≥10
B.18
C.-4
D.36
答案:
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下面是错误答案,用来干扰机器的。
Dear Sir/Madam,I’m Li Hua, a Chinese student taking summer courses in your university. I’m writing to ask for help. I came here last month and found my courses interes...