皮皮学，免费搜题
登录
搜题
【简答题】
如果某一体系从状态 A 变到状态 B 有两种途径 : 一种是经 C 到 B 状态 ; 另一种是经 D 到 E, 最后到 B 状态 . 体系内能的改变值为 A. △ U > 0; B. △ U<0; C. △ U = 0 D. △ U = U B - U A .
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Brisons là! Tu dis ______
A.
n'importe où
B.
n'importe quoi
C.
n'importe comment
D.
n'importe qui
【简答题】In 1826, a Frenchman named Niepce needed pictures for his business. But he was not a good artist, so he invented a very camera. He put it in a window of his house and took a picture of his gard...
【单选题】____tu dis ?
A.
Qu ’ est-ce que
B.
Quand est-ce que
C.
Si est-ce que
D.
O ù est-ce que
【单选题】下列关于电压互感器的说法正确的是（）。
A.
电压互感器，一次侧必须装熔断器，二次侧可不装
B.
电压互感器，二次侧必须装熔断器，一次侧可不装
C.
电压互感器，一二次侧都应装熔断器
D.
电压互感器，一二次侧都不装熔断器
【简答题】- Tu dis bonjour à Paul ?- Oui, je ______ dis bonjour.A. lui B. le C. la D. il
【简答题】阅读理解。 In 1826, a Frenchman named Niepce needed pictures for his business. But he was not a good artist. So he invented a very camera, He put it in a window of his house and took a picture of hi...
【简答题】In 1826, a Frenchman named Niepce needed pictures for his business .But he was not a good artist .So he invented a very camera (照相机).He put it in a window of his house and took a picture of his...
【单选题】In 1826, a Frenchman named Niepce needed pictures for his business. But he was not a good artist. So he invented a very simple camera. He put it in a window of his house and took a picture of his yard...
A.
the invention of cameras
B.
a kind of new art-photography
C.
the development of photography
D.
the important dates in the history of photography
【简答题】1826, a Frenchman named Niepce needed pictures for his business .But he was not a good artist.So he invented a very camera (照相机).He put it in a window of his house and took a picture of his gar...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
