男性,6岁。右手烧伤,有水疱,剧痛。在现场急救中,为减轻疼痛,最适当的方法是()
A.安慰和鼓励受伤者
B.肌注地西泮
C.肌注哌替啶
D.局部制动
E.冷疗
参考答案:E
______ the danger from wars, people had to deal with a shortage of food, clothing, fuel and almost everything.
A.In spite of
B.Instead of
C.As long as
D.As well as
磁体上______的部分叫做磁极,任何磁体都有______个磁极;当磁体能够自由转动时,最终总会有一个磁极指向北方,这个磁极称为______极,另一个磁极指向南方,称为______极.