本课程为收费课程，购买后即可观看完整内容
-
- 12:21 免费1、Unit 1 Section A(1)
- 10:29 付费2、Unit 1 Section A(2)
- 11:40 付费3、Unit 1 Section B
- 13:48 付费4、Unit 1 Self Check
- 24:10 付费5、Unit 2 Section A(1)
- 24:12 付费6、Unit 2 Section A(2)
- 12:09 付费7、Unit 2 Section B(1)
- 19:08 付费8、Unit 2 Section B(2)
- 14:28 付费9、Unit 2 Self Check
- 18:25 付费10、Unit 3 Section A(1)
- 17:33 付费11、Unit 3 Section A(2)
- 18:18 付费12、Unit 3 Section B(1)
- 08:04 付费13、Unit 3 Section B(2)
- 11:23 付费14、Unit 3 Self Check
- 11:02 付费15、Unit 4 Section A(1)
- 06:36 付费16、Unit 4 Section A(2)
- 00:00 付费17、Unit 4 Section B
- 00:00 付费18、Unit 4 Self Check
- 00:00 付费19、Unit 5 Section A(1)
- 00:00 付费20、Unit 5 Section A(2)
- 00:00 付费21、Unit 5 Section B(1)
- 00:00 付费22、Unit 5 Section B(2)
- 00:00 付费23、Unit 5 Self Check
- 00:00 付费24、Unit 6 Section A(1)
- 00:00 付费25、Unit 6 Section A(2)
- 00:00 付费26、Unit 6 Section B(1)
- 00:00 付费27、Unit 6 Section B(2)
- 00:00 付费28、Unit 6 Self Check
- 00:00 付费29、Unit 7 Section A(1)
- 00:00 付费30、Unit 7 Section A(2)
- 00:00 付费31、Unit 7 Section B(1)
- 00:00 付费32、Unit 7 Section B(2)
- 09:35 付费33、Unit 7 Self Check
- 09:09 付费34、Unit 8 Section A(1)
- 14:02 付费35、Unit 8 Section A(2)
- 13:27 付费36、Unit 8 Section B(1)
- 08:08 付费37、Unit 8 Section B(2)
- 11:53 付费38、Unit 8 Self Check
- 06:20 付费39、Unit 9 Section A(1)
- 11:18 付费40、Unit 9 Section A(2)
- 11:42 付费41、Unit 9 Section B(1)
- 07:42 付费42、Unit 9 Section B(2)
- 10:48 付费43、Unit 9 Self Check
- 09:41 付费44、Unit 10 Section A(1)
- 18:09 付费45、Unit 10 Section A(2)
- 00:00 付费46、Unit 10 Section B(1)
- 00:00 付费47、Unit 10 Section B(2)
- 00:00 付费48、Unit 10 Self Check
- 00:00 付费49、Unit 11 Section A(1)
- 00:00 付费50、Unit 11 Section A(2)
- 00:00
付费51、Unit 11 Section B(1) - 00:00 付费52、Unit 11 Section B(2)
- 00:00 付费53、Unit 11 Self Check
- 00:00 付费54、Unit 12 Section A(1)
- 00:00 付费55、Unit 12 Section A(2)
- 00:00 付费56、Unit 12 Section B(1)
- 00:00 付费57、Unit 12 Section B(2)
- 00:00 付费58、Unit 12 Self Check