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【简答题】
为了保持园艺产品的优良品质,从商品生产到消费之间需要一定的低温,即新鲜水果、蔬菜等园艺产品采收后在流通、贮藏、销售系列过程中实行低温保藏,以防止新鲜度和品质下降,这种低温冷藏技术连贯的体系称为 。
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皮皮学刷刷变学霸
举一反三
【单选题】______ for your advice, I would not have accepted the job.
A.
Not being
B.
Without being
C.
Not having been
D.
Had it not been
【简答题】起动系由 ____ 、____、____、和____组成。
【单选题】Your advice was a great help to us, without which all our efforts .
A.
wouldn’t pay off
B.
hadn’t paid off
C.
wouldn’t have paid off
D.
didn’t pay off
【单选题】In no ______ should you do this without help and advice from your doctor—restricting the diet of small children can be very dangerous.
A.
perspectives
B.
restrictions
C.
circumstances
D.
consequences
【单选题】Without your timely advice and help, we______so much.
A.
will never achieve
B.
could hardly achieve
C.
can't have achieved
D.
wouldn't have achieved
【单选题】关于辐射定标的数量关系，下列描述正确的是
A.
场地辐射定标过程中，需要借助定标场，来求解增益和偏置
B.
场地辐射定标过程中，需要已知的增益和偏置，求解定标场目标辐射亮度
C.
线性定标关系中，偏置乘以DN值，再与增益相加，可得到辐射亮度
D.
线性定标关系中，偏置乘以DN值，即可得到辐射亮度
【简答题】骨连结是指骨与骨之间的连结装置称骨连结,其形式可分为 和 两类。
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