参考答案
51. [答案] A
52. [答案] A
53. [答案] A
54. [答案] A
55. [答案] B
56. [答案] D
57. [答案] B
58. [答案] D
59. [答案] C
60. [答案] C
61. [答案] B
62. [答案] D
63. [答案] A
64. [答案] B
65. [答案] B
[解析] CIF=10×(1+10%)=11(万美元)
国内运输费=CIF×国内运输费率=11×2.5%=0.275(万美元)=0.275×6.8=1.87(万元人民币)