【单选题】听力原文: Today I would like to demonstrate the tone of different kinds of pianos, to demonstrate how the tone varies according to the shape and how it is placed in a room. Excluding archaic variations of...
A.
How the tone of a piano is affected by its shape.
B.
How to measure a piano’s resonance.
C.
How to improve your performance by choosing the right piano.
【简答题】看图,完成句子。 1. I have ______________ and ______________ for lunch today. 2. I would like some ______________ and ______________ for lunch. 3. My favourite food is ______________ and ______________.