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【单选题】
下列事件中,命令按钮能响应的事件是_____A.
DblClick
B.
Click
C.
Scroll
D.
Load
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举一反三
【单选题】You spent $500 last week fixing the transmission in your car. Now, the brakes are acting up and you are trying to decide whether to fix them or trade the car in for a newer model. In analyzing the bra...
A.
opportunity
B.
fixed
C.
incremental
D.
sunk
【简答题】Consider the following s: Scientists reveal that consumption of oranges decrease the risk of diabetes. Follow the three yzing steps and explain how this affect the equilibrium price and...
【单选题】In analyzing whether to replace or keep existing equipment, the cost of the new equipment _____.
A.
is irrelevant because it is a historical cost
B.
is relevant because equipment is always relevant
C.
represents a future cost that will differ between the options of replacing or keeping the equipment
D.
both A and B
【单选题】After analyzing the above factors, the _________ Staff can gauge the risk in deciding whether to accept a clients’ application.
A.
Credit
B.
Purchasing
C.
General Cashier
D.
F&B
【简答题】在 732K 时,反应 NH 4 Cl(s)==NH 3 (g)+HCl(g) 的 D r G = - 20.8kJ · mol -1 , D r H =154kJ · mol -1 ,则该反应的 D r S = 。
【简答题】Think about what else you can “yze”, and then complete the sentences with the right words. 1) My teacher helped me to yze the ____________(原因) of my failure. 2)The linguists are interested ...
【简答题】（1）铝土矿的主要成分是Al 2 O 3 ·3H 2 O，假设杂质是Fe 2 O 3 ，写出由铝土矿制备金属铝的各步骤的化学方程式。（2013年高考题片段，源于高一教材） （2）炼铁的原料有赤铁矿（假设杂质为SiO 2 ）、焦炭、石灰石，设备为高炉，写出炼铁时所发生的主要的化学反应方程式 （3）工业上用石英砂先煅烧制取粗硅，最后经过还原反应制取高纯硅，其反应方程式分别为： （4）假设没有Fe，生活...
【单选题】在 732K 时反应 NH 4 Cl(s)=NH 3 (g)+HCl(g) 的 △ r G 为 -20.8kJ·mol -1 , △ r H 为 154kJ·mol -1 , 则反应的 △ r S 为 ( )J·mol -1 ·K -1
A.
587
B.
-587
C.
239
D.
-239
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