阅读下面材料，用不多于3个单词的正确形式填空

Are you facing a situation that looking impossible to fix?

In 1969, the pollution is terrible along the Cuyahoga River near Cleveland, Ohio. It ______小题1:(be)imaginable that it could be ever be cleaned up. The rive was so polluted that it ______小题2:(actual) caught fire and burned. Now year late,this rive is one of_______小题3:most outstanding examples of environmental cleanup.

But river wasn’t changed in a few days_____小题4:even a few months. It took years of work _______小题5:(reduce) industrial pollution and clean the water. Finally, that hard work paid off and now the water in the river is______小题6:(clean) than ever.

Maybe you are facing an impossible situation. Maybe you have a habit _____小题7:is driving your family crazy. Possibly you drink too much or don’t know how to control your credit card use. When you face such impossible situation, don’t you want a quick fix and something to change immediately.

While there are_______小题8:(amaze) stories of instant transformation, for most of us the  _______小题9:(change) are gradual and require a lot of effort and work, like cleaning up a polluted river. Just be_______小题10:(patience)

关于末端再热式布风器的以下说法中错误的是（）。

A．大多采用电加热器，可使送风温度达到55～60℃

B．调节旋钮完全关闭风门时，不允许漏风

C．设有电加热器时，常同时设温度控制器和温度安全开关

D．除风量调节旋钮外，有的还有调温旋钮