题目内容

25岁妇女,孕36周,G,Po,合并重度子癎前期需终止妊娠,下列哪项提示胎儿已成熟

A. 羊水胆红素类物质用△OD450测值>0.02
B. 卵磷脂与鞘磷脂比值(L/S)>2
C. 羊水肌酐测定<2mg%
D. 羊水中脂肪细胞出现率达15%
E. B型超声测胎头双顶径值8.0cm

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Your’’re off work and hanging out at home. Off your diet and into cookies, big dinners and champagne. Off your schedule, and up nights with movies, videos or a good book. Off your workout routine and skipping your morning swim or evening run. In short, you’’re off, free of responsibilities and pressure, stuffed full of food and fun. And you don’’t like it. "All humans, and for that matter all species that are vertebrates and many that are not, have internal clock mechanism, "said George Brainard, professor of neurology at Thomas Jefferson University in Philadelphia." That’’s not a metaphor. It’’s an actual biological entity." As many people find themselves in the second week of enforced indolence because of the winter break -- whether because of school holidays or time off from work -- more than a few may be experiencing a peculiar sensation. A wave of discontent at the luxury of doing nothing, of sitting around with time to spare, the commodity of the late 20th century that we’’re constantly told is in dangerously short supply. The sense is that you should feel great, but actually you don’’t. You hate to admit it, but it might even be a welcome break to go back to work or school. "I enjoy being off, but I enjoy coming back too, "said Virgina Woodard of Chicago. After several days off around Christmas, she was back at her baby-sitting job on New Year’’s Eve, taking her 3-year-old charge to a museum. "It messes up your schedule, and coming back is tiresome," said Woodard, who nonetheless said she enjoyed her time off. "I feel like I’’ll need a week to recover to get back on my schedule, "said Joni Lederer. She and her family shared the holidays at their Highland Park home with another family, and she has spent the days since taking her two sons skating ,bowling and to museums. "Most people," said Brainard," do better and are healthier if they keep a regular social calendar to their life that is somewhat consistent with their internal timekeeping mechanism." The changes in routine that commonly occur during the holidays come at a biological cost. Those changes disrupt the body clock, located primarily in the brain, and may produce an out-of-sorts feeling. "Normal day-to-day routines and realities are very supportive of the internal clock structure that leads to good health," he added. When a person is off work and hanging out at home, he doesn’’t like it, why

A. He has nothing to do during the holidays and so he feels useless.
B. His routine timetable is changed so he doesn’’t feel comfortable.
C. He doesn’’t have any responsibilities and pressures, so he feels uneasy.
D. If he feels happy during the holidays, work will be more unbearable when the holidays are over.

施工预算审查对降低工程造价具有现实意义。( )

A. 对
B. 错

现在编制工预算时特别要注意,所用的工程量和人工、材料量是统一的计算方法和定额;所用的单价是统一的(定额、价格信息、价格指数和调价方法)。( )

A. 对
B. 错

《建没工程工程量清单计价规范》中规定的造价计算方法,就是根据实物计算法原理编制的。( )

A. 对
B. 错

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