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【简答题】
湿敏传感器是一种能将____________转换成__________的装置,主要由___________和_________两部分组成。
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皮皮学刷刷变学霸
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【单选题】固溶体合金的相图如图所示,试根据相图确定: (a) 成分为 40%B 的合金首先凝固出来的固体成分; (b) 若首先凝固出来的固体成分含 60%B ,合金的成分为多少? (c) 成分为 70%B 的合金最后凝固的液体成分; (d) 合金成分为 50%B ,凝固到某温度时液相含有 40%B ,固体含有 80%B ,此时液体和固体各占多少分数?
A.
（a）45%B；（b）40%B；(c)20%B；(d)液体:75%,固体：25%
B.
（a）85%B；（b）15%B；(c)20%B；(d)液体:75%,固体：25%
C.
（a）85%B；（b）40%B；(c)25%B；(d)液体:25%,固体：75%
D.
（a）25%B；（b）40%B；(c)70%B；(d)液体:25%,固体：75%
【简答题】完形填空。 It is often said some people died in the burning buildings. Escaping (逃离) a fire is a 1 matter. Knowing what to do during a fire can save a life. It is 2 to know the ways you can use and 3 them ...
【简答题】It is said that Westerners are usually not very willing to accept responsibility for something another member of their group has done. Make a comment on this.
【判断题】It is not difficult to remember what has been said because it can usually be heard more than once.
A.
正确
B.
错误
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