学校早上8:25上第一节课,一节课是40分,应在______下课.
8时25分+40分=9时5分,
答:应在9:05下课.
故答案为:9:05.
Come on, Harry, why stand there alone We'll go to play ballgames. How about () us
A.taking part in
B.joining
C.joining in
D.attending
任意电路中支路数一定大于节点数。( )