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【单选题】
下列有关化学用语表示正确的是A.
S 2- 的结构示意图：
B.
常用于考古中文献年代确定的原子：14 6C
C.
H 2 CO 3 的电离方程式：H 2 CO 3 2H + +CO 3 2-
D.
4g H 2 在空气25℃.101kPa下燃烧，生成液态的水放出571.6kJ·mol -1 的热量，则该反应的热化学方程式为：2H 2 (g)+O 2 (g)==2H 2 O(g)；△H=－571.6kJ/mol
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【简答题】Some companies try to charge the ___________ price that people will pay for a product so that they can make as much money as possible.
【单选题】决策应具有以下哪些特点:1决策必须具有一定的超前性2决策必须具有绝对的确定性3决策必须具有一定的可行性4决策必须具有若干方案的选择性。
A.
①②
B.
②③
C.
①③④
D.
③④
【简答题】Modern China is filled with companies that try to make people think that money can buy happiness: If you buy all of their amazing new products, you'll be happy. On this subject, writer Kathy Lette onc...
【单选题】Companies can try to reduce how much they spend, but some _______are fixed, e.g. rent and energy costs.
A.
tax
B.
invoice
C.
overheads
D.
price
【单选题】决策应具有以下哪些特点()。1决策必须具有一定的超前性;2决策必须有绝对的确定性;3决策必须具有一定的可行性;4决策必须有若干方案的选择性。
A.
①②
B.
②③
C.
①③④
D.
③④
【简答题】Optional-product pricing. Companies may _____________ customers into the store with low prices, but make most of their profit on optional extras, upgrades and _____________ that they try to sell to th...
【单选题】Advertisements are powerful and some companies try to mislead us, so we ____ be careful when reading them. [ ]
A.
can
B.
may
C.
must
D.
would
相关题目：
【单选题】决策应具有以下哪些特点()。1决策必须具有一定的超前性;2决策必须有绝对的确定性;3决策必须具有一定的可行性;4决策必须有若干方案的选择性。
A.
①②
B.
②③
C.
①③④
D.
③④
参考解析：
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