细菌疫苗的接种方法主要有___________、____________、__________和___________。
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Wilmer Jones owns several restaurants in different cities. His restaurants compete on quality of food and service, price, and marketinc. With regard to potential benefits of trading rice and plastic between Colfax and Birklund:
A. perfect competition
B. monopolistic competition
C. oligopoly
致病微生物包括________、________、________和________。
现场急救对伤病员基本处理时,应该()DRABCD的辨别,提高急救效果。
A. 考虑到
B. 不考虑
C. 随时处理
“13710”代表的含义中,第1个“1”表示接到任务后的第1天内回复内容是基本办理情况。()
参考答案:错误