【单选题】M: Nice to see you again, Jane. I hope you are better. W: I’m fine now. But I’m afraid I’ll be back in bed again if the company continues to make me work so hard. Why was Jane away from work?
A.
She was ill and had to stay in bed.
B.
She was on vacation for a week.
【判断题】土壤颗粒组成是根据土壤中各组矿质土粒的相对含量在一定范围内具有相似的性质,机械组成基本相同的土壤具有类似的肥力特征这一特点,对土壤所做(作)适当分类,并给予一定名称。
【单选题】一个2岁小儿,其乳牙总数可按照下列哪个公式推算
【多选题】现代市场营销学认为,促销方式包括( )。
【判断题】土的分类是以土的颗粒组成特征、土的塑性指标、土中有机质存在的情况作为依据。