A:For
B:A
C:Due to
D:Because
图片共同反映了我国的( )
一种新型锁-----声纹锁。只要主人说出事先设定的暗语就能把锁打开,别人即使说出暗语也打不开。这种声纹辨别声音的主要依据是( )
The public bikes are r____ by many tourists along the West Lake.