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【判断题】
由气体组成的热力学系统,单个分子的运动同时具有无序性和统计性的特点。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【简答题】合并可见图层快捷键是:
【单选题】The writer pushed away everyone else who came near to him because _________.
A.
he hated them
B.
he felt like screaming "Get away from me"
C.
he felt embarrassed and wanted to hide without anyone seeing him
D.
he was HIV-positive and feared that others' lives would be endangered if they touched his bleeding head
【单选题】According to the writer, professional knowledge or skill is______.
A.
less important than awareness of being a good employee
B.
as important as the ability to deal with public relations
C.
more important than employer-employee relations
D.
as important as the ability to co-operate with others in the organization
【单选题】The writer think people take part in dangerous sports because ______.
A.
they want to get away from modem life
B.
they have more free time
C.
they like adventures
D.
they are not quite pleased with modem life
【简答题】几位同学发现村中池塘里不断地冒一些气泡，听人说这种气体可能是沼气，他们就上网搜索了相关资料： ①沼气是一种混合气体，可以燃烧．沼气是有机物经微生物厌氧消化而产生的可燃性气体； ②沼气是多种气体的混合物，一般含甲烷50%～70%，还含有CO 2 、N 2 和CO等．其特性与天然气相似； ③甲烷化学式为CH 4 ，完全燃烧生成CO 2 和H 2 O． 为了检验气体的组成，他们设计了如图甲所示的取气方法...
【单选题】What will happen if the parking meter registers' time expired'?
A.
The car will be pushed away by policemen.
B.
The driver's license will be withdrawn.
C.
The owner of the car will be fined.
D.
The traffic wardens will drive the car away.
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