建筑群子系统由连接多个建筑物之间的()和光缆、建筑群配线架及()和跳线组成。
参考答案:主干电缆;设备缆线
双向翻译 (共5小题;每小题2分,满分10分)
61. 除了由于战争和冲突所引起的各种紧急问题外, the UN helps countries with other problems such as lack of education, lack of food, poverty, disasters and disease. At a UN meeting in 2000,62. all 191 members agreed to try and meet eight development goals by the year 2015. One of the goals is to ensure that 63. fresh drinking water is available to everyone. Another is to ensure all children complete primary education. For more information, 64. 你可以浏览联合国的相关网页。 So you see, with the work of the UN 65. the world has been brought closer together
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杀青的目的是()。
A.彻底破坏酶活性
B.固定茶叶外形
C.散发青草气
D.蒸发部份水分,便于揉捻成条