已知等腰三角形的一边为7cm，一边为5cm，则它的周长是（ ）cm。
19或17
Do you think _______ an American film tomorrow? [ ]
A. is there
B. there's going to be
C. will there be
D. there's going to have
以脏腑部位划分阴阳，则肾属（）。
A．阳中之阳
B．阴中之阳
C．阳中之阴
D．阴中之阴
E．阴中之至阴
