理想气体的()是两个相互独立的状态参数。
A.温度与热力学能
B.温度与焓
C.温度与熵
D.热力学能与焓
参考答案:C
—Is he interested in sailing?
— Of course! In fact he is known ________ as the most daring sailor on the seas.
A.far and wide
B.then and there
C.safe and sound
D.up and down
在磁场外部,磁力线由N极指向S极;在磁场内部,磁力线由S极指向N极。