预裂爆破
参考答案:首先起爆布置在设计轮廓线上的预裂爆破孔药包形成一条沿设计轮廓线贯穿的裂缝,再在该人工裂缝的屏蔽下进行主体开挖部位的爆破,保证保留岩体免遭破坏。
第二节:短文改错(共10小题,每小题1分,满分10分)
A man went to an insurance office to have his life insured. The manager of the office ask him how old his parents were when they were died. “Mother had a bad heart and passed away at age of 30. Father died of tuberculosis (肺结核) when he was 35.” “I’ m very sorry,” said the manager, “We can’ t insure our life as your parents were not health” Disappointing, the man left the office. He met a clerk who had listened their talk. “You mustn’t be so frank and tell the truth.” said the clerk. “Not office will insure you if you speak like that. Use your imagination a little.” The man went to other office and was shown into the manager’ s room. “Well, young man, how old were your parents when they died?” “Mother was 93, and died while she was play football.”
女,22岁,双侧听力下降伴头痛头昏近10年,根据所提供图像,最可能的诊断是()
A.双侧听神经瘤
B.Sturge-WeberSyndrome
C.神经纤维瘤病Ⅱ型(NF-Ⅱ)
D.结节性硬化(TS)
E.双侧神经纤维瘤