单项选择题

某天然气厂一作业区二站新更换的分离器液位计玻璃板正常生产中突然爆裂，发生天然气泄漏。站长杨某，值班员王某、赵某按照应急处理方案更换了玻璃板，试压合格后，恢复正常生产。3h后，分离器液位计玻璃板再一次爆裂，杨某立即组织关井、关站并控制气源、火源。造成液位计玻璃板爆裂的直接原因是（）。

A.王某、赵某操作失误
B.杨某违章指挥
C.玻璃板材质存在缺陷
D.应急处置不当
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听力原文：W: Good evening and welcome to tonight's edition of Legendary Lives. Our subject this evening is James Dean, actor and hero for the young people of his timE.Edward Murray is the author of a new biography of Dean. Good evening, EdwarD.M: Hello, TinA.W: Edward, tell us what you know about Dean's early lifE.M: He was born in Indiana in 1931, but his parents moved to California when he was fivE.He wasn't there long though because his mother passed away just four years later. Jimmy's father sent him back to Indiana after that to live with his aunt.W: So how did he get into acting?M: Well, first he acted in plays at high school, then he went to college in California where he got seriously into acting. In 1951 he moved to New York to do more stage acting.W: Then when did his movie career really start?M: 1955. His first starring role was in East of Eden. It was fabulous. Dean became a huge success. But the movie that really made him famous was his second one—Rebel without a Cause, that was about teenagers who felt like they didn't fit into society.W: So how many more movies did he make?M: Just one more, then he died in that car crash in California in 1955.W: What a tragedy! He only made three movies! So what made him the legend he still is today?M: Well I guess his looks, his acting ability, his short life, and maybe the type of character he played in his movies. Many young people saw him as a symbol of American youths.What is the woman doing?A.Interviewing a movie star.B.Discussing teenage role models.C.Hosting a television show.D.Reviewing a new biography.
A.M:
B.
W:
C.
M:
D.
W:
E.
W:
F.
W:
G.
W:
H.
What
I.Interviewing
J.
B.Discussing
K.
C.Hosting
L.
D.Reviewing
单项选择题
某化工企业在切割某管线施工时，由于管线内残存可燃性原料受热气化，遇切割产生明火发生爆炸，爆炸冲击波造成紧邻管线的储罐内有毒气体泄露，事故造成3人死亡，20人重伤，35人急性工业中毒，财产损失560万元。依据《企业职工伤亡事故分类》(GB6441)及《生产安全事故报告和调查处理条例》(国务院令第493号)，下列说法中，正确的是()。
A.该起事故类型是火灾事故。事故的等级为较大事故
B.该起事故类型是爆炸事故，事故的等级为重大事故
C.该起事故类型是火灾事故，事故的等级为特大事故
D.该起事故类型是爆炸事故，事故的等级为较大事故
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