Among (the most complex) crystals are (that) of silicon dioxide, which has seven (different) structures at various temperatures and pressures, the most (common being) quartz.请NN给分析一下句子好吗？这里开头是介宾结构在句首，倒装。但是最后的拿部分是什么意思？还有整句怎么翻译？
（By）1810 the 23 towns of Hampshire County, Massachusetts, (had reached) a remarkable (uniform) of economic development (as well as) population density.这题的答案是D，但是我认为uniform的词性不对啊，应该是uniformity才对，as well as虽然没and好，但是也是可以将就的。
