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听力原文: UNICEF is joining with a nonprofit group to bring AIDS prevention programs to more women and children in five countries. UNICEF, United Nations Children's Fund, will work with Family Health International. The new partnership will be established at first in Guyana, India, Malawi, Nigeria and Zambia. One of the goals is to improve care for babies infected with H. I. V. , the virus that causes AIDS. Another is to prevent the spread of H. I. V. from mother to child. Activities will depend on the needs of each country. In some cases, anti-AIDS drugs will be provided to infected parents of children. Women and children living in rural communities will receive most of the services (Q18). Both UNICEF and Family Health International will expand their partnership into more countries in the future. Family Health International has been working on public health issues since 1971 (Q19). The organization is based in North Carolina and has programs in seventy countries. It does research on infectious diseases and reproductive health, and also provides services. Experts say an important part of fighting AIDS is political will (Q20). One example they point to is Cambodia. That country has been getting attention for its progress in reducing some of the highest infection rates in Asia. Experts praise the government for supporting public education efforts and programs. The services of the new partnership are provided mainly to ______.
A.
mothers of infected babies.
B.
infected children and women.
C.
infected children in cities.
D.
infected women in cities.
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A.
一个移动一个转动
B.
两个移动一个转动
C.
一个移动两个转动
D.
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ALT+鼠标滚轮
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【单选题】将平面工件放在铣床工作台面上,还剩下一个轴的转动和( )个轴的移动的自由度未被限制。
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)二
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【单选题】用三个支承点对工件的平面定位,能限制()个自由度。
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三个移动
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三个转动
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【单选题】The new bridge ________ by the end of last month.
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has been designed
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had been designed
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was designed
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would be designed
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