短文填词。根据首字母填入适当的词,使短文意思完整。

     Danny, Jenny and Brian want to show us their e   1  . They stand in f   2   of the class. Danny is wearing

his s   3  . Everyone l   4   when they see Danny. Danny sits down. Brian puts water i   5   the jar. He puts the

cardboard on t   6   of the jar. He puts his hand on the cardboard and t   7   the jar upside down. Then he holds

the jar above Danny's head. Then Brian will take his hand o   8   the cardboard. What will happen? Can you

guess? What's your conclusion? Will Danny get w   9   ? Please show your t   10   to us.

下列（）不是矿大国家重点学科。

A、地图制图学与地理信息工程

B、电力电子与电力传动

C、机械设计及理论

D、岩土工程