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【简答题】
Do you know how to make friends with a group of people? Let me t__小题1:___ you the steps about making friends with the group. Maybe it’s h____小题2:___ to you. First, you need to know what k___小题3:___ of group they belong to. If people of the group are shy(害羞的), never ask them “Why don’t you talk?” or “Why are you quiet?” They don’t like it, so d___小题4:___ do it. N___小题5:___, remember that each group is different. They will use different words, find different things funny . Then, the important thing is that you should try to be outgoing(外向的). I___小题6:___ you are outgoing, you will become very popular . Remember, n____小题7:____ wants to make friends with a quite shy person. F____小题8:____, find a right topic to talk with the group. For example, you can ask people w___小题9:__ they will do before the weekend, but don’t make plans at once. S___小题10:____ things can change, so just talk with them.
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【单选题】I in Microsoft Company for many years, but I have never regretted my final decisin to switch to Apple Company. [     ]
A.
had worked
B.
have worked
C.
have been working
D.
worked
【单选题】当经济学家说人们是理性的时,这是指()
A.
人们不会做出错误的判断
B.
人们总会从自己的角度做出最好的决策
C.
人们根据完全的信息而行事
D.
人们不会为自己所做出的的任何决策而后悔
【单选题】I studied in Cambridge for three years, but I've never regretted________the decision to move back to Beijing and________my own restaurant. [     ]
A.
to make; to open up
B.
making; opening up
C.
to make; open up
D.
making; open up
【单选题】—It’s years ____you broke up then. —Yes. I have regretted the decision. It was long ____I realized I had mistaken him.
A.
until; after
B.
when; before
C.
since; before
D.
when; until
【单选题】I ______ in Paris for many years, but I have never regretted my final decision to move back to China.
A.
have lived
B.
lived
C.
was living
D.
had lived
【单选题】当经济学家说人们是理性的时,这是指( )
A.
人们不会作出错误的判断
B.
人们根据完全的信息行事
C.
人们总会从自己的角度作出最好的决策
D.
人们不会为自己所作出的任何决策而后悔
【单选题】碱槽中NaOH的作用是()
A.
去除多孔硅
B.
去金属杂质
C.
刻蚀
D.
去PSG
【判断题】机油细滤器的滤清能力强,所以流经细滤器后的机油直接流向润滑表面。
A.
正确
B.
错误
【单选题】利用钠碱循环法可脱除烟气中的SO 2 。在钠碱循环法中,Na 2 SO 3 溶液作为吸收液,可由NaOH溶液吸收SO 2 制得。当吸收液的pH降至约为6时,需送至电解槽再生。再生示意图如下: 下列有关上述过程的说法错误的是
A.
NaOH溶液吸收SO 2 制得Na 2 SO 3 溶液的离子方程式:2OH - +SO 2 =SO 3 2 - +H 2 O
B.
当吸收液呈中性时,溶液中的离子浓度满足:c(Na + )=2c(SO 3 2 - )+c(HSO 3 - )
C.
吸收液吸收SO 2 的过程中,pH与 的大小成反比
D.
HSO 3 - 在阳极放电时的电极反应式:HSO 3 - +H 2 O-2e - =S0 4 2- +3H +
【简答题】(7分)工业上采用离子交换膜电解槽电解饱和食盐水,可以得到高浓度的烧碱溶液(含NaOH35%~48%)。某学习小组为了验证附近氯碱化工厂产生的NaOH溶液是否达到高浓度标准,进行了如下操作,请你参与计算: (1)到工厂采集了电解槽中的NaOH溶液100g。NaOH中氧元素的质量分数   是 。 (2)在实验室用如图所示浓硫酸配制200g24.5%的稀硫酸,计算所取浓硫酸的体积(计算结果取整数)。 ...
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