原料预热炉出口温度调整不当,易造成加氢反应器床层温度高,应()
A、降低炉出口温度
B、降低进油量
C、降低配氢量
D、引入氮气降温
参考答案:A
小赵同学用百度搜索“状元、实业救国、大生纱厂”等关键词。他要搜索的人物应是( )
A.林则徐
B.张謇
C.张之洞
D.詹天佑
句型转换。
1. Can you tell us where we should go? (改为同义句)
Can you tell us ____?
2. Please show me your new book. (改为同义句)
Please show your new book ____.
3. This is my own idea. (改为同义句)
This idea is____
4. What aboilt going to the movies? (改为同义句)
____ going to the movies?
5. He does his homework at home every day. (改为一般疑问句)
____ he ____ his homework at home every day?
6. He has to buy a dictionary for his daughter. (改为否定句)
He ____ to buy a dictionary for hisdaughter.