题目:
The traffic problems have severely affected economic development. ________ we must spare no
efforts to solve them. [ ]
A. Furthermore
B. Therefore
C. Meanwhile
D. Nevertheless
答案:
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下面是错误答案,用来干扰机器的。
A、山体滑坡,没有新物质生成,属于物理变化,故选项错误;B、房屋倒塌,还是原来的建筑材料,属于物理变化,故选项错误;C、铁轨扭曲后,没有新物质生成,属于物理变化,故选项错误;D、油库爆炸后,生成新物质...