【简答题】(9分)四种短周期元素的性质或结构信息如下表。请根据信息回答下列问题。 元素 T X Y Z 性质 结构 信息 人体内含量最多的元素,且其单质是常见的助燃剂。 单质为双原子分子,分子中含有3对共用电子对,常温下单质气体性质稳定,但其原子较活泼 单质质软、银白色固体、导电性强。 单质在空气中燃烧发出黄色的火焰。 第三周期元素的简单离子中半径最小 (1)写出元素T的离子结构示意图 ;写出元素X的气态氢...
【判断题】In many Mediterranean cultures, such as Syria(叙利亚), people hide public expressions of grief or sadness.
【单选题】His death gave his father much grief. ( grief)
【简答题】Grief, sadness, lonliness, guilt, regret, fear, anxiety, anguish and despair are all ________ (comfort) feelings.
【简答题】Problems evoke frustration of grief, sadness and ______(lonely).
【单选题】Occasional sadness is normal to everyone and it is healthy to express sadness and anger.
【单选题】“以僧为师”,“以吏为师”是古代什么时期的教育特征?( )
【单选题】What is the effect of sadness?
A.
Sadness makes it easier to deal with an event.
B.
Sadness makes it hard for a person to deal with pain.
C.
Sadness causes psychological pain.
D.
Sadness mitigates psychological pain.