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【简答题】
下列金属材料的焊接方法中，（ ）的特点是对材料和焊接位置适应性强，适于焊接碳钢、耐热钢、不锈钢等，适用于锅炉制造、安装、修理中各种位置的焊接。
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【简答题】阅读理解。 Wetlands! Valuable Resources on the Earth There are many wetlands in China and some of them have become the world's important wetlands. The Chinese Yellow Sea Wetlands are among them. They are i...
【简答题】Wetlands ! Valuable Resources on the Earth There are many wetlands in China and some of them have become the world's important wetlands. The Chinese Yellow Sea Wetlands are among them. They are in Yan...
【多选题】有价值的资源或能力必须是： ； ; 。Valuable resources /competences must be ; ; .
A.
稀缺的 rare
B.
易于学习的 easy to learn
C.
难于模仿的 hard to imitate
D.
不易被替代的 not easily substitutable
【简答题】M any valuable resources in China ’ s west area are to be exploited and used.英译汉
【简答题】从下列单词中选择适当的词填空: Abuse awareness discipline exhaust fatal harsh hydrate incredible lifestyle prized positive premature schedule After the military
training, the students became more ____________.
【判断题】Utilitarian standards are appropriate when decisions involve limited but valuable resources that can be used in many different ways.
A.
正确
B.
错误
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