根据企业——服务——顾客——利润链理论，顾客忠诚是由（）所决定的。
A.企业内部环境
B.顾客满意度
C.价值大小
D.服务人员忠诚度
参考答案：B
___ waiting for the bus.
A．They both are
B．They are both
C．They both will be
D．Both they are
The big man has always been eating on the go,（）he has got stomachache.
A.so
B.however
C.as
D.because
