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分泌盐酸的是()
关于慢性萎缩性胃炎,叙述错误的是().
男性,32岁。2天前,因牙痛服用氨酚待因后,唇、颊黏膜突然肿胀,出现水疱、糜烂。检查上下唇糜烂,形成红褐色痂皮。根据病史和临床表现,可能的诊断是()
柴胡、薄荷均具有的功效是()
横切面木质部略呈方形的药材是()
墙壁拉线的拉攀距墙角应(),距屋沿应≥400mm。
社区预防包括()
预均化堆场的堆料方式为:()。
于离子交换原理,利用某些离子交换剂所具有的阳离子(Na+或H+)与水中钙、镁离子进行交换反应,达到软化的目的,称为()。
下列与腹水有关的体征不包括()
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()the packing is the same, the lots are different inmarks.
()the packing is the same,the lots are different in marks.
在规定包装条款时,一般不宜采用“海运包装”(Seaworthy Packing)和“习惯包装”(Customary Packing)之类的术语
Poor packing will cause much trouble()delivery.
He wrote lots of books, and he also liked ______ . He was an actor.
All fines and expenses from insufficiency and inadequacy of packing or marks sha...
Heavy wear in a particular area of the inner circumference of a packing ring may...
The packing installed in the pump stuffing box is lubricated by ().
英译中:Neutral packing
Some pumps use packing as sealing glandThe gland should be ().