由于套管外壁腐蚀或损坏,从而可能造成未射孔的套管所封隔的()水或油、气层与其他层窜通。
A、低压
B、中压
C、高压
D、外压
参考答案:C
任务型阅读(本题有5小题,每小题1分,共5分)
很多人在谈话中喜欢引用名人的话,恰当地引用名言能使你的表达增色不少。请仔细阅读方框中的名言,然后将它们与题中的话语配对。
A.A friend in need is a friend indeed.
B.If winter comes,can spring be far behind ?
C.Follow your own course(路径),and let people talk.
D.Give a man a fish and he will eat for a day.Teach a man to fish and he will eat for the rest of his life.
E.Good painting is like good cooking;it can he tasted,but not explained.
小题1:Sarah:Don’t care too much about what they have said,Tony.
小题2:Stephen:Thanks for helping me,Amy. l’m so proud of having a friend like you.
小题3:Mr.Lee:Teachers should tell the kids not only what to do,but also how to do that.
小题4:Alan:Don’t be upset,Jeff. The great success is just in front of you.
小题5:Sally:I don’t want to hear the tour guide introduce the paintings in the gallery. Don’t you think so ?
体位性低血压诊断标准错误的是()。
A.由卧位向坐位或站立位转移
B.出现面色苍白、恶心、呕吐、胸闷、心慌不适、冷汗等症状
C.甚至意识丧失或晕厥
D.血压下降20~30mmHg
E.血压下降1.33~2.67kPa