【单选题】Ambiguity often arises due to ________, as is shown in the sentence "The fish is ready to eat."
【判断题】目标任务法简便易行,能将促销费用、销售单价和单位利润三者紧密联系在一起,降低了促销预算的风险( )A. 对 B. 错
【简答题】数据处理时,标准差大,说明测量精度 __________ ,标准差小,说明测量精度 _________ 。
【判断题】目标任务法简便易行,能将促销费用、销售单价和单位利润三者紧密联系在一起,降低了促销预算的风险。
【单选题】Health QR code是什么意思?