67. A volunteer is usually expected to work within a year for at least
参考答案
B
2012_省自主命题(江西)
67. A volunteer is usually expected to work within a year for at least
B
【答案】B
【解析】推理判断。根据文章第三段第一句可知:志愿者要每年至少参加 12 个月,每个月三道四次,每次花一到四小时。所以可以得出,志愿者一年之内最少要工作 $12\*3\*1=36$小时。