如图，下列条件中，不能判定直线a平行于直线b的是（　　）

⑴Doing more exercise is good for health.  ____

⑵I feel cold. I need to wear warm clothes.  ____

⑶You should see a doctor when you are ill.  ____

⑷If you are angry, you'd better take a deep breath and count to ten.  ____

A.

B.

C.

D.

假如一粒花生米燃烧，使锥形瓶内的20ml水由25℃升高到35℃（提示：1ml水每升高1℃需要吸收4.2 焦的热量），锥形瓶内的水吸收了____ 焦的热量．实际上此粒花生全部燃烧产生的热量比上述热量____ ．（填多或少）