听力原文:M: How much are the carnations and tile roses?
W: One dollar for each carnation and (9)one and a half for each red rose.
M: (9)Then I'd like a dozen red carnations and half a dozen red roses.
W: I bet it's for your mother, (8)as it's Mother's Day today.
M: Well, not completely true. (8)It happens to be her birthday.
W: Oh, really? I guess she must be very happy to receive these beautiful carnations from you.
M: Yeah, she will. She really likes flowers. So I buy her some every year. I'd just wish they would stay fresh longer than they do.
W: (10)Put a little sugar and vitamin C in the water. They'll stay fresh for days.
M: Really? I'll tell my mother. And thanks for your suggestion.
W: That's all right. Happy birthday to your mother!
8. What day is it today?
(6)
A.Birthday of the man's mother.
B.Mother's Day.
C.Mother's Day and the birthday of the man's mother.
D.Mother's Day and the lady's birthday.
第2题
压力容器设备法兰和接管法兰由于塑性变形过大而导致密封泄漏,是因强度不足而使密封结构失效。()
第7题
A.罐体焊缝、接管根部角焊缝因焊接缺陷而引起的开裂泄漏。
B.罐体接管法兰、阀门、安全阀、液位计、温度计等连接密封以及输送液氯泵轴封部位失效或泄漏。
C.与罐体相连的液氯管道法兰、阀门等连接密封部位失效或泄漏。
D.设备管道法兰垫片失效以及罐体本身腐蚀、冲刷、磨损引起的泄漏。
第8题
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