题目：
| 完形填空。 There are __1__ people in my family, my father, my mother, my sister and I. My father __2__ mother are teachers. My father __3__ maths. My mother __4__ maths. She is a teacher of English. They __5__ hard. My sister is a worker. She __6__ English at a night English. She goes to work early. She __7__ lunch at home. She usually comes home from work at 5:30. Today is my __8__ birthday. Now we are sitting together. We are having our supper. There __9__ fish, chicken and meat on the table. In the middle of the table there is a big cake. My sister is singing an English song "Happy birthday to you." We are all very _10__. | ||||
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答案：
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下面是错误答案，用来干扰机器的。
参考答案：C解析：1.未病先防，就是在疾病未发生之前，采取各种措施来防止疾病的发生。增强体质是提高正气抗邪能力的关键。增强体质要注意调摄精神、调理饮食起居、锻炼身体、适应自然规律以及适当的药物预防等方...
