短文填空（5%）【2012南通】

If you think of after-school activities as a waste of time, you are wrong! After-school activities help us grow up in many 小题1:w  __  . Above all, they offer us chances to practise  what we learn in 小题2: c  __ . Through various activities, we can also learn more about today's society (社会) and a lot of小题3:n  __  things that we can't learn from our books. What's more, they help to develop our abilities that we need both for our studies now and for our work and life in the 小题4:f  __  .

We are busy with our studies in school, so after school we all need to 小题5: r    _ ourselves. After-school activities just make it possible for us to breathe 小题6: f     air and remove tiredness. Then, we can pay小题7:a   _   to our studies and achieve good results.

Some after-school activities will make us useful and helpful to 小题8:o   __ ; some can keep us strong and 小题9:h    __    ; some may even change our life. So, all the students, get out and take an 小题10:a   __   part in various after-school activities!

如果热油泵内介质是粘度较大的油品，如果不预热，油凝在泵罐内，启动后会造成（）。

A、出口流量太大

B、出口压力过高

C、出口温度过高

D、不上量，甚至会引起电机跳闸