实现有保证的增长率,要求满足的条件是()。
A.S=sY
B.S=I
C.I=Vy
D.S=V
参考答案:B
解析:保证的增长率要求S=I。
In the International Young Pianists Competition, when it was________that Lang Lang had won, he was
too excited to hold back his tears.[ ]
A. told
B. mentioned
C. announced
D. recognized
安全带的正确挂扣方法是()。
A.低挂高用
B.高挂低用
C.平挂平用