下列方法中不属于变压器绝缘排潮装置常采用的方法是( )。
A.真空法
B.自然通风法
C.干燥剂法
D.滤油法
参考答案:C
把方程3x(x﹣1)=(x+2)(x﹣2)+9化成一般式是( )
句型转换。
1. I can draw and paint. (否定句)
I ______ draw ______ paint.
2. I can take good care of them .(同义句)
I can ______ them ______.
3. I will tell you something about my school .(一般疑问句)
______ tell me ______ about ______ school ?
4. He didn't come to school because he was ill .(就画线部分提问)
_____ he come to school ?
5. He knew a lot about this film .(一般疑问句)
_____ he _____ a lot about this film ?
6. Is everyone here? (同义句)
_____ here ?