【多选题】液化石油气特性为()。
A.
液化石油气主要包括丙烷、丙烯、丁烷、丁二烯、异丁烯等。
B.
液体的密度约为水的一半,气体密度比空气大,泄漏出来易聚集在低洼处,随着地形填满沟、坑、下水道等,不易扩散,但可以漂移很长的距离。
C.
液化石油气由液相变为气相,体积扩大约250倍
D.
液化石油气易与空气形成爆炸性混合物,爆炸极限通常为1.5%~10%。
E.
液化石油气无色、无臭、无毒,但吸入后会造成恶心或头痛,吸入过多有麻醉性
【判断题】Guernica went on a global tour in support of the fight against fascism in Spain.
【单选题】关于感染性尿路结石的特点,下列不正确的是
【判断题】Picasso created Guernica in less than a month.
【单选题】It can be inferred from the passage that Guernica was ______.
D.
a small country in Europe
【判断题】Picasso was commemorating a whole century of suffering by creating Guernica.
【单选题】After the bombing of Guernica, the Germans ______.
A.
managed to launch the Spanish Civil War
B.
frightened the whole world into silence
C.
went on to wipe out Dresden and Hiroshima
D.
did not admit their crime