选择题 The movement of the moon conveniently provided the unit of month, which was ______ from one new moon to the next.

【正确答案】 B

【答案解析】句意：月亮的运行很方便地提供了月份这个单位，即从某一次新月计算到下一次新月。 measure按照标准精确测量。 reckon计算，测量，猜想。 judge判断，审理。 assess评定，评估。