皮皮学，免费搜题
登录
搜题
【单选题】
依据GB/T 4789.2-2016,菌落总数测定结果1:100(第一稀释度)菌落总数均为25,29; 1:1000(第二稀释度)菌落总数均为10,5;1:10000(第三稀释度))菌落总数均为无菌落生长,菌落总数报告为( )A.
无法计数
B.
2.5× 103
C.
8.0× 103
D.
2.7× 103
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】请分别画出单相电子式电能表接线图、三相四线电能表接线图、三相三线电子式电能表接线图。
【单选题】听对话，回答问题。 What did the boy do last weekend? [ ]
A.
Did his homework and helped his father sell clothes.
B.
Went to a piano lesson and played soccer.
C.
Helped his sister study English and did his homework. v
【单选题】This poor boy was treated so ___ by his stepmother that we all helped him.
A.
good
B.
well
C.
bad
D.
badly
【单选题】Lucy , a _______ girl , helped the little boy find his parents. [ ]
A.
twelve year old
B.
twelve years old
C.
twelve-year-old
D.
twelve-years-old
相关题目：
参考解析：
知识点：
题目纠错 0
发布
