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【单选题】
为方便钢尺量距工作,有时要将直线分成几段进行丈量,这种把多 根标杆标定在直线上的工作,称为()。A.
定向
B.
定线
C.
D.
定标
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举一反三
【单选题】在温度为T下，CaCO3(s)，CaO(s)，CO2(g)平衡系统的压力为p，已知它们之间存在反应CaCO3(s) = CaO(s) + CO2(g)，若向该平衡系统加入CO2(g)，当重新达平衡时，系统的压力（ ）。
A.
变大
B.
变小
C.
不变
D.
可能变大也可能变小
【单选题】— Can you imagine that we've translated 30% of the long article today? — _____. You're so smart and quick! [ ]
A.
It's a pleasure
B.
I don't mind
C.
That's it
D.
I can't believe it
【单选题】Imagine being laid up in a hospital and, as you're wheeled down the sterile hallway, along strolls a three-foot-tall horse wearing yellow rubber booties and a backpack full of daisies. No, you're not ...
A.
doctors like pets and want to keep them where they work.
B.
evidence shows that pets help patients recover.
C.
patients can help train and register these pets.
D.
some experiments need these pets.
【简答题】阅读理解。 Imagine you're at a party full of strangers. You're nervous. Who are these people? How do you start a conversation? Fortunately, you've get a thing that sends out energy at tiny chips in everyon...
【单选题】在温度T下，CaCO 3 （s），CaO（s），及CO 2 的平衡系统的压力为p，已知它们之间存在反应： ，若往该平衡系统加入CO 2 （g），当重新达到平衡时，系统的压力（）
A.
变大
B.
变小
C.
不变
D.
可能变大也可能变小
【简答题】阅读短文，根据其内容回答问题。 Imagine having a bedroom that interacts with you. If you're sad, it will arrange for some of your friends to come over to cheer you up. If you're happy, it might respond by playing you...
【简答题】Imagine you’re at a party full of strangers. You’re nervous. Who are these people? How do you start a conversation? Fortunately, you’ve got a thing that sends out energy at tiny chips in everyone’s na...
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