皮皮学,免费搜题
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搜题
【单选题】
不含味蕾的结构是
A.
轮廓乳头
B.
菌状乳头
C.
软腭的粘膜上皮
D.
丝状乳头
E.
会厌的粘膜上皮
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举一反三
【判断题】试验设计三项原则,其中重复和随机排列的作用是有效地降低试验误差。( )
A.
正确
B.
错误
【多选题】随机排列和设置重复相结合对试验结果的作用是:
A.
可以无偏的估计试验误差
B.
分离系统误差
C.
有效消除系统误差
D.
降低随机误差
【单选题】听力原文:M: Hello, Jenny. What are you doing here? W: Hello, Mark! This is my daughter, Sarah. It's the school holidays, so we're shopping now. We're not sure what to do after that. M: Well, there's a sho...
A.
1:15.
B.
2:00.
C.
1:30.
D.
3:30.
【单选题】听力原文:M: Hello, Jenny. What are you doing here? W: Hello, Mark! This is my daughter, Sarah. 'It's the school holidays, so we're shopping now. We're not sure what to do after that. M: Well, there's a sh...
A.
1:15.
B.
2:00.
C.
1:30.
D.
3:30.
【单选题】以下哪种物质曾经是允许使用的面粉增白剂,后来废止了( )。
A.
保险粉
B.
吊白块
C.
硫磺
D.
过氧化苯甲酰
【单选题】Oh, Jenny. What _____ surprise you gave us!
A.
a pleased
B.
pleasant
C.
a pleasant
D.
pleased
【简答题】根据图意,为下列句子排序。 (     ) How old are you? (     ) Thank you, Jenny. (     ) Hello, Jenny. (     ) I am ten years old. (     ) Hello, Li Ming. (     ) Jenny, today is my birthday. (     ) Happy birthday, ...
【单选题】在田间试验设计时采用随机排列的作用是( )。
A.
降低试验误差
B.
无偏估计试验误差
C.
控制边际效应
D.
便于田间管理
【简答题】Read and answer. 阅读对话,根据对话内容回答问题 。 Jenny: Hi, Dotty. What are you looking at? Dotty: Oh, Jenny. Some photos. Jenny: Photos? Who is this baby? Dotty: It was me. I was one year old. Jenny: You were so s...
【判断题】随机排列的作用是降低试验误差。
A.
正确
B.
错误
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