以下FONST3000业务哪些业务带宽是20G的？（）
A.8TS1
B.8TA1
C.8TDG
D.8TDGF
参考答案：A, B
用所给单词的适当形式填空。
1. This department store _________ (have) shoes, clothes, toys, books and _________ (bicycle).
2. Let's go to the movie theatre to _________ (watch) a movie.
3. The weather is _________ (wind) and _________ (cloud).
4. Tom _________ (go) to the city.
苯酐包装编织袋外袋宽度为（）mm。
A.520
B.530
C.540
D.550
