评价茶具清洗消毒效果的判定指标包括()。
A.细菌总数
B.脊髓灰质炎病毒
C.余氯
D.大肠菌群
E.真菌
参考答案:A, D
根据首字母及汉语提示完成单词拼写,使句意通顺:
1. Sunday is the f________ (第一) day of a week.
2. Mike ________ (骑) his bike to school every morning.
3. Thank you for your i________ (邀请).
4. We have different h________(习惯).
5. Can you help me to c________ (选择) some CDs?
下列字体演变的先后顺序是:()
①甲骨文
②隶书
③小篆
④楷书
A.①②③④
B.②③④①
C.①③②④
D.④③②①