单项选择题 根据下列材料请回答 51～65 题：ManyChildren’S Deaths Preventable：WHOOver five million children die each yearfrom disease，infections and accidents Related_____________(51)theirenvironment although many of these deaths are largely preventable，says the WorldHealth Organization.On Monday，the WHO asked governments and citizensaround the world to take action to create healthy_____________(52)for childrenas it celebrated World Health Day.“The biggest threats to children’Shealth lurk(潜藏) in the very_____________(53)that should be safest—home，school andcommunity，said Dr.Gro Harlem B．rundtland director-general of the WHO at the day’Slaunch in New Delhi，India.“Every child has the right to_____________ (54)upin a healthy home school and community.The future development of ourchildren——and of their world—depends on ---------- (55)enjoying good healthnow.We have their future in our---------- (56) Now we must work more effectivelytogether to_____________ (57)the risks from the environment which our childrenface，”Brundtland said.This year’s theme，“Healthy Environments forChildren”focuses on the many dangers ---------- (58)by children in and aroundthe places where they live and play.These include inadequate access tosafe ---------- (59)water and sanitation(卫生设备)，insect’borne diseases，airpollution，chemical hazards and injuries from traffic.Falls burns anddrownings.Communities around the world organized events to promoteawareness of children’s health issues ---------- (60)included drawing contestsfor schoolchildren in Vietnam street plays in India，puppet(木偶)shows in Namibiaand professional lectures for policy makers in Germany andelsewhere.Activities also took---------- (61)in cities across Canada onMonday.Including Calgary，Montreal，Halifax and Ottawa.Although childrenunder five represent only 1 0 per cent of the world’S population， they bear 40per cent of the global disease---------- (62)，says the WHO.And as much asone—third of the total burden of disease may be caused by environmental---------- (63)World Health Day has been celebrated on April 7th---------- (64)1 950.Each year the WHO chooses a theme to highlight areas ofparticular concern.Last year’s ---------- (65)，Move for Health.focuses onpromoting physical activity as part of healthy living. 第 51 题A．by B．to C．on D．at

多项选择题 线路设计的技术资料包括（）。

单项选择题 A．清音 B．过清音C．鼓音 D．浊音E．实音气胸时叩诊呈( )