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【单选题】
无性系品种的育种特点之一是A.
群体遗传组成同质、个体纯合
B.
群体遗传组成异质、个体杂合
C.
群体遗传组成同质、个体杂合
D.
群体遗传组成同质、个体杂合
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【简答题】小型光伏照明系统工作电压为 12V,每天负载120Ah,自给天数5天,蓄电池最大放电深度80%,选用单体蓄电池额定电压为12V,容量为400Ah的蓄电池,蓄电池总容量为 ,串联数 ,并联数 。
【简答题】Read and then outline each passage. Begin by writing in the main idea, and then fill in the supporting details. The first outline requires only major details; the second calls for you to add minor det...
【简答题】I.Reading for general ideas 1. Fill in the blanks to complete the outline of the text. Suggested answer s Thesis statement: Heading for Part I (Paragraph 1): Heading for Part II (Paragraphs 2 to 7): H...
【单选题】Note-taking is an important skill in and out of school while listening to English speakers. The following video clip "How to Take Great Notes" is divided into 3 sections. Here is a complete outline fo...
A.
An average student, with proper training, can copy down everything the teacher says.
B.
If you’re writing down everything, you’ll be falling seriously behind.
C.
Note-taking skill is more important at school than at work.
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