Friedreich型共济失调是由于_________号染色体基因突变所致,该基因第18号内含子_________异常扩增,使其基因产物_________蛋白缺陷,从而导致_________功能障碍而发病,其遗传方式为_________。
You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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