鼠疫耶尔森菌在肉汤培养基中生长，其具有诊断意义的生长现象是()_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

鼠疫耶尔森菌在肉汤培养基中生长，其具有诊断意义的生长现象是()

A．混浊生长

B．絮状沉淀

C．颗粒状沉淀

D．形成菌膜，晃动后呈钟乳石状下沉

E．形成菌膜，菌液澄清

答案

参考答案：D

填空题

根据句意和首字母填上适当的单词。

1. My uncle and aunt are ______ (都) workers.

2. We brush (刷) our t______ every day.

3. What's the d______ today? It's October 15.

4. It's not p______ to talk in class.

5. We can get books from the school l______.

6. The fourth day of a week is ______.

问答题简答题

试述采购计划的审批过程中审查的内容主要是什么？