函数y=f（x）的值域是[-2，2]，则函数y=f（x-2）的值域是（ ） A． 发布时间：2017-04-20 08:16 │ 来源：www.tikuol.com 题型：选择题 问题： 函数y=f（x）的值域是[-2，2]，则函数y=f（x-2）的值域是（ ）A．[-2，2]B．[-4，0]C．[0，4]D．[-1，1]
题型：选择题 研究核电站的工作流程，思考并讨论以下问题： (1)核电站中第一回路和第二回路的水为什么要隔离？ (2)第一回路中的冷却剂除了吸收反应堆中的热能外，在反应堆中还起什么作用？ (3)在核电站中，是怎样将核能转化为电能的？ (4)第二回路中循环的水和水蒸气、冷却塔出来的水蒸气，是否会对周围环境带来放射性污染？ 查看答案
题型：选择题 Artificial flowers are used for scientific as Well as for decorative purposes. They are made from (51) of materials, such as wax and glass, so skillfully that they can scarcely be (52) from natural flowers. In making such models, painstaking skill and artistry are called for, (53) thorough knowledge of plant structure. The (54) of glass flowers in the Botanical Museum of Harvard University is the most famous in North America and is widely known (55) the scientific world. (56) , there are several thousand models in colored glass, the work of two artist naturalists, Leopold Blalschka and his son Rudolph. The intention was to have the collection (57) at least one member of each flower family native to the United States. (58) it was never completed, it contains more than seven hundred species representing 164 families of flowering plants. (59) detail of these is accurately reproduced in color and structure. The models are (60) n locked cases as they are too valuable and fragile for classroom use.A．a varietyB．someC．a sortD．several 查看答案
题型：选择题 维护中央权威决定性的因素不包括（）。A.维护中央权威是我国建国的需要B.中国革命是由中 * * 党领导的农民革命C.在改革进入整体推进的态势下，更应当强调中央权威D.中国各地区贫富差距大 查看答案