问题
单项选择题
分闸位置继电器与合磁线圈哪个阻抗大()
A.分闸位置继电器
B.合磁线圈
C.二个同样
答案
参考答案:A
分闸位置继电器与合磁线圈哪个阻抗大()
A.分闸位置继电器
B.合磁线圈
C.二个同样
参考答案:A
选择方框中的单词或词组填空,使句子完整。 | |
2. The sign means we should stay ____________ the building. 3. Nancy is going to play the piano ____________. 4. Do more exercise, and you'll get ____________. 5. It' s warm ____________ in spring in New York. 6. In spring, the weather gets ____________ and the trees turn green. |