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【简答题】
小组学习视频4.5食品的冻结方法,4.6食品冻藏过程中的变化,完成课前任务(小组于晚上10点前线上提交1份,其他同学在作业本上完成,明天抽查): 1、在-18°C的冻藏库中,冷冻猪肉一般可以贮藏多久?如果长时间冻藏,冷冻猪肉会发生哪些品质变化?你有什么样的措施或方法来减缓这些变化? 2、肉龄超40年的“僵尸肉“还能不能吃?说说你的看法。 3、速冻的方法有哪些?简述它们的优缺点和适用范围。
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【判断题】媒体搜索是选择供应商的唯一途径。
A.
正确
B.
错误
【单选题】The author refers to “filter-feeding animals” (line 20) in order to______
A.
provide an example of a characteristic sign of reef deterioration
B.
explain how reef communities acquire sustenance for survival
C.
identify a factor that helps herbivore populations thrive
D.
indicate a cause of decreasing nutrient input in waters that reefs inhabit
E.
identify members of coral reef communities that rely on coral reefs for nutrients
【单选题】Why does the author introduce Abstract Expressionist painter?
A.
He wants to provide an example of artists who, like serious contemporary photographers, disavowed traditionally accepted aims of modern art.
B.
He wants to set forth an analogy between the Abstract Expressionist painters and classical Modernist painters.
C.
He wants to provide a contrast to Pop artist and others.
D.
He wants to provide an explanation of why serious photography, like other contemporary visual forms, is not and should not pretend to be an art.
【单选题】Why does the author introduce Abstract Expressionist painter?
A.
He wants to provide an example of artists who, like serious contemporary photographers, disavowed traditionally accepted aims of modem art.
B.
Be wants to set forth an analogy between the Abstract Expressionist painters and classical Modernist painters.
C.
He wants to provide a contrast to Pop artist and others.
D.
He wants to provide an explanation of why serious photography, like other contemporary visual forms, is not an should not pretend to be an art.
【多选题】有关核酸的叙述,正确的有
A.
核酸的基本单位是核苷酸
B.
脱氧核糖核酸的英文缩写符号是 DNA
C.
核糖核酸的英文缩写符号是 RNA
D.
DNA 和 RNA 中的五碳糖相同
【单选题】关于核酸的叙述正确的是( )
A.
只有细胞内的核酸才是携带遗传信息物质
B.
DNA分子中两条脱氧核苷酸链之间的碱基一定是通过氢键连接的
C.
分子大小相同、碱基含量相同的核酸分子所携带的遗传信息一定相同的
D.
用甲基绿和吡罗红魂和染色SARS病毒可观察到DNA和RNA的分布
【单选题】Why does the author introduce Abstract Expressionist painter?
A.
He wants to provide an example of artists who, like serious contemporary photographers, disavowed traditionally accepted aims of modem art.
B.
He wants to set forth an analogy between the Abstract Expressionist painters and classical Modernist painters.
C.
He wants to provide a contrast to Pop artist and others.
D.
He wants to provide an explanation of why serious photography, like other contemporary visual forms, is not and should not pretend to be an art.
【简答题】服装外轮廓构造的几种常用方法:自然物象的借用、( )、( )。
【简答题】If you need to take a _______ exam for quiz or mid-exam, you need to provide a leave-note to your teacher.
【简答题】The information (provide)_______ by the company is a brief summary of benefits
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