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【单选题】
在蒸馏低沸点有机化合物时应采取哪种方法加热?A.
酒精灯
B.
电炉
C.
热水浴
D.
砂浴
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】关于计算机语言，下列叙述正确的是（）。
A.
高级语言是与计算机型号无关的计算机语言
B.
低级语言学习使用很难，运行效率也低，所以已被高级语言淘汰
C.
汇编语言程序是最早出现的高级语言
D.
计算机能够直接理解、执行汇编语言程序
【多选题】对我国当前的就业形势描述正确的有( )。
A.
我国依然是人口和劳动力最多的发展中国家。
B.
解决就业问题具有长期性，艰巨性和复杂性。
C.
就业结构性矛盾也更加突出。
D.
部分地区、部分行业、部分群体的就业压力较大。
【简答题】Why did the parents mentioned in the third paragraph leave the child alone in a room?
【判断题】Price leadership is an example of informal or tacit collusion but a cartel is an example of formal collusion.
A.
正确
B.
错误
【简答题】A．Why his parents wanted to go to Gettysburg. B．Why his family's vacation plans changed ten years ago. C．Where his family went for a vacation ten years ago. D．When his family went on their last vacati...
【简答题】暗中的和公开的勾结(tacit and explicit collusion)
【单选题】Why do the parents choose private school for their children?
A.
The parents choose private school mainly because they give religious instructions that can’t be done in public schools.
B.
The parents choose private school mainly because the tuition there is very low
C.
The parents choose private school mainly because they are located near their houses.
D.
The parents choose private school mainly because they are safer and have higher academic standards than public schools.
【单选题】关于计算机语言,下列叙述正确的是________。
A.
计算机能够直接执行理解、执行汇编语言程序
B.
汇编语言程序是最早出现的高级语言
C.
低级语言学习使用很难,运行效率也低,所以已经被淘汰
D.
高级语言是与计算机型号无关的计算机语言
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