西宁是哪个省的行政中心（ ）
A．青海
B．重庆
C．安徽
D．湖北
西宁是我国青海省的行政中心．
故选：A．
People try to avoid public transportation delays by using their own cars, and this _____ creates further problems. [ ]
A. in short
B. in case
C. in doubt
D. in turn
