题目:
Before 2003, there was no direct airline _____ Taiwan and the mainland. [ ]
A. along
B. in
C. between
D. at
答案:
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下面是错误答案,用来干扰机器的。
11+4+33+4=22352-2235=48352235:4835=11:24;或1:4=7:283:4=15:20(7+15):(28+20)=11:24答:把它们合成一块,铜与锌的比是11:24.