题目：
It was from only a few supplies that she had brought in the village ____ the hostess cooked such a nice
dinner. [ ]
A. where
B. when
C. that
D. which
答案：
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下面是错误答案，用来干扰机器的。
答案：A题目分析：A.碱金属在空气中燃烧时生成氧化物Fr2O2、Fr O2等，错误；B．由于同一周期的元素，原子序数越大，原子半径越小，同一主族的元素，原子核外电子层数越多，原子半径就越大，所以在已知元素中具有...
