客户凭卡办理邮政储蓄异地存取业务，按交易金额的（）收取手续费。(五级、四级)
参考答案：0.5％
The poor girl has to depend on _____ for living because her parents are both ill in hospital.[ ]
A. she
B. her
C. hers
D. herself
硝酸银—氨溶液可以鉴别（）。
A.乙烯和乙炔
B.乙烯和乙烷
C.乙炔和丙炔
D.乙烯和乙醇
