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【单选题】
中国营养学会提出,我国成年人钙的适宜摄入量为()A.
500mg/d
B.
800mg/d
C.
1200mg/d
D.
2000mg/d
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【单选题】He is consumed________ the large amount of money for his tuition fee.
A.
at
B.
in
C.
into
D.
with
【简答题】( 14 分)黄血盐 [ 亚铁氰化钾, K 4 Fe(CN) 6 ] 目前广泛用做食盐添加剂(抗结剂),制备黄血盐的一种工艺如下: 回答下列问题: ( 1 )实验室用绿矾晶体配制硫酸亚铁溶液时,为了防止其变质需要添加的试剂为 ( 2 )步骤II中滤渣的主要成分是 __ _ ,步骤V所用的试剂 X 可以是 _ _ 。 ( 3 )步骤III反应的化学方程式为 ___ ) _ 。
【简答题】9548 Questions 1 to 5 are based on the following passages. Reaching new peaks of popularity in North America is Iceberg Water, which is harvested from icebergs off the coast of Newfoundland, Canada. A...
【简答题】Passage 2 Reaching new peaks of popularity in North America is Iceberg Water, which is harvested from icebergs off the coast of Newfound land, Canada. Arthur von Wiesenberger, who carries the title Wa...
【单选题】新泻县产的“越光”和宫城县产的“一见钟情”大米登陆中国后,每袋2公斤售价分别为198元和188元,其价格是中国大米价格的25倍之多,媒体称之为“天价”大米。但在北京、上海等发达城市很快就脱销了。这体现了( )
A.
收入是影响消费的主要因素
B.
价格是影响消费的主要因素
C.
求异心理是影响消费的重要因素
D.
攀比心理是影响消费的重要因素
【单选题】Reaching new peaks of popularity in North America is Iceberg Water, which is harvested from icebergs off the coast of Newfoundland, Canada.Arthur Von Wiesenberger, who carries the title Water Master, ...
A.
It is a kind of iced water.
B.
It is just plain tap water.
C.
It is a kind of bottled water.
D.
It is a kind of mineral water
【单选题】Everyone should be ______ innocent until it is proved that he is guilty.
A.
presumed
B.
assumed
C.
resumed
D.
consumed
【简答题】Reaching new peaks of popularity in North America is Iceberg Water, which is harvested from icebergs off the coast of Newfoundland, Canada . Arthur von Wiesenberger, who carries the title Water ...
【简答题】什么是前体?其添加方式是什么 ?
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