判断电梯电子板是否存在故障时,一定要按照电梯电子线路图分析电子板的功能和可能的影响.在无法完全确定是否是电子板的故障时,可以把其他电梯的电子板拿到故障电梯来判断.()
参考答案:错
句型转换。
1. Climbing is not so dangerous as diving. (保持句意基本不变)
Diving is _____________ dangerous _______________ climbing.
2. Millie's shoes are not the same as Tina's. (保持句意基本不变)
Millie's shoes are ____________ ____________ Tina's.
3. David is polite and helpful.(就划线部分提问)
_____________ is David ____________?
4. We can go to the Summer Palace by bus. (保持句意基本不变)
We can ____________ a ___________ to the Summer Palace.
5. They did their homework last night. (改为否定句)
They ____________ ____________ their homework last night.
起重机的主要参数包括起重量、跨度、起升高度、工作速度及()等。
A.工作级别
B.工作类型