约瑟夫.M.朱兰博士认为,预防成本20%,故障成本40%,鉴定成本40%的成本结构为最佳结构。
参考答案:错
患者,女性,35岁。1小时前用力大便时突然出现全头剧烈疼痛,恶心、呕吐,轻度意识障碍,颈强直,克氏征阳性。腰椎穿刺压力290mm水柱,脑脊液呈均匀一致血性
本例的病因诊断方面,最重要的检查是()
A.脑电图
B.MRI
C.脑CT
D.全脑血管造影
E.TCD
句型转换
小题1: My father often helps in the house at the weekend. (改为一般疑问句)
______ your father often _________ in the house at the weekend?
小题2:My cousin Lucy has been away from home for five years. (改为同义句)
It’s five years _______ my cousin Lucy _______ home.
小题3:The work is hard enough for me to finish in such a short time. (改为复合句)
The work is ______ hard ______ I can’t finish it in such a short time.
小题4:Mr. Lu said, “ I have many good friends and a well-paid job in Beijing.”
(改为间接引语)
Mr. Lu said that _______ _______ many good friends and a well-paid job in Beijing.
小题5:The government will build a new school in my hometown. (改为被动语态)
A new school will ________ ________ in my hometown by the government.