搜题请搜索小程序“爱下问搜题”
问题 单项选择题

消毒后、使用前餐具需达到卫生标准为（）。

A．不得检出致病菌

B．HBs阴性，不得检出致病菌

C．细菌总数＜100个/ml，大肠杆菌＜3个/1000ml

D．细菌菌落总数≤100cfu/ml，不得检出致病微生物

E．细菌菌落总数≤5cfu/cm2，HBs阴性，未检出大肠杆菌及其他致病菌

答案

参考答案：E

阅读理解

阅读理解

       S.H.E is a singing group from Taiwan. There are three girls in the group. They are Selina, Hebe and

Ella.

       "S"is for Selina. She is 30 years old. Her birthday is October 31st.She is 1.62 m. She likes pink. She also likes going shopping.

       "H"is for Hebe. She is 28 years old. Her birthday is March 30th.She is 1.58 m. She likes red. She

often goes to see movies.

       "E"is for Ella. She is 31 years old. Her birthday is June 18th.She is 1.63 m. She likes white and jeans.

1. Ella is________years old.

A. 30            

B. 28              

C. 31            

D. 26

2. Hebe likes ________.

A. going shopping                    

B. going to movies  

C. having parties                      

D. jeans

3. What color does Selina like?  She likes________.

A. pink          

B. red              

C. white          

D. purple
查看答案
单项选择题

信息检索的主要形式是什么（）

A.文献检索

B.数据检索

C.事实检索

D.概念检索
查看答案