【单选题】一定量的理想气体,处在某一初始状态,现在要使它的温度经过一系列状态变化后回到初始状态的温度,可能实现的过程为( )
A.
先保持压强不变而使它的体积膨胀,接着保持体积不变而增大压强
B.
先保持压强不变而使它的体积减小,接着保持体积不变而减小压强
C.
先保持体积不变而使它的压强增大,接着保持压强不变而使它体积膨胀
D.
先保持体积不变而使它的压强减小,接着保持压强不变而使它体积膨胀
【单选题】唐代科举考试,考生为了保证不写错字,最需要参考的字样之书是:
【判断题】The bottom of the pyramid of needs contains physiological needs such as food, sleep and safety according to Maslow ’ s Hierarchy of Needs .
【单选题】唐代科举考试,考生为了不写错字,最需要参考字样之书是
【多选题】According to Maslow, human needs are a clarified the need into 5 levels, which are ( ).
D.
Self-actualisation needs
【判断题】According to Maslow, a need that is essentially satisfied no longer motivates.
【判断题】According to Maslow, once a need is satisfied, it will remain as an important motivator.
【判断题】According to Maslow, the needs are divided into five groups, which can be satisfied simultaneously.
【单选题】转筒真空过滤机的滤饼是在哪个区形成的( )。