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【单选题】
债权债务的明细分类账一般采用(
A.
多栏式账簿
B.
三栏式账簿
C.
数量金额式账薄
D.
横线登记式账簿
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皮皮学刷刷变学霸
举一反三
【多选题】下列哪些是四环素的不良反应
A.
恶心、呕吐
B.
牙齿黄染
C.
假膜性肠炎
D.
抑制婴幼儿骨骼发育
【单选题】Variation in hfeis influenced by ______
A.
junction temperature and collector current
B.
temperature and base current
C.
bias type and device size
D.
device size and base current
【简答题】工业生产纯碱的工艺流程示意图如下 完成下列填空 (1)粗盐水加入沉淀剂A、B除杂质(沉淀剂A来源于石灰窑厂),写出A、B的化学式。 A_____________B____________ (2)实验室提纯粗盐的实验操作依次为:取样、________、沉淀、_________、__________、冷却结晶、_________、烘干。 (3)工业生产纯碱工艺流程中,碳酸化时产生的现象是_______...
【简答题】(14分)工业生产纯碱的工艺流程示意图如下: 完成下列填空: (1)粗盐水加入沉淀剂A、B除杂质(沉淀剂A来源于石灰窑厂),实验室提纯粗盐的实验操作依次为:取样、溶解、沉淀、____、蒸发、冷却结晶、____、烘干。 (2)工业生产纯碱工艺流程中,碳酸化时产生的现象是____。 碳酸化时没有析出碳酸钠晶体,其原因是 ____。 (3)碳酸化后过滤,滤液D最主要的成分是____(填写化学式),检验这...
【简答题】A) She felt it was tiring. B) She felt it was very nice. C).She thought it took less time. D) She thought it was expensive.
【简答题】A.She was impressed by it. B.It was a waste of money. C.She was amazed it had opened so soon. D.She didn't like it as much as the other wings.
【简答题】A.It was stolen. B.It was given a ticket. C.She couldn't find it. D.She found it towed away by the police.
【多选题】工程地质勘查的目的主要有( )。
A.
对建筑物所在地区做出地质评价;
B.
查明工程地质条件 ;
C.
查明地形地貌;
D.
对场地的稳定性和适宜性做出评价;
【简答题】工业生产纯碱的工艺流程示意图如下: 完成下列填空: (1)粗盐水加入沉淀剂A、B除杂质(沉淀剂A来源于石灰窑厂),写出A、B的化学式A. ,B. (2)实验室提纯粗盐的实验操作依次为:取样、 、沉淀、 、 、冷却结晶、 、烘干 (3)工业生产纯碱工艺流程中,碳酸化时产生的现象是 .碳酸化时没有析出碳酸钠晶体,其原因是 (4)碳酸化后过滤、滤液D最主要的成分是 (填写化学式),检验这一成分的阴离子的...
【简答题】A. She was impressed by it. B. It was a waste of money. C. She was amazed that it had opened so soon. D. She didn't like it as much as the other wings.
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