在4次独立重复试验中，随机事件A恰好发生1次的概率不大于其恰好发生两次的概率，则事件A在一次试验中发生的概率P的取值范围是 ．
由题意知.
企业的利得和损失指的是可以直接计入所有者权益的利得和损失。( )
During the election, the chairman again __________ his position on the issue that he would stick to the current economic policies.[ ]
A. clarified
B. classified
C. purified
D. simplified
.
.