Before the cross-border optical fibers were interconnected, some problems hindered the interconnection between Burmese and the world. The problems are _________.
举一反三
- Owing to the financial crisis， economic problems were exacerbated all over the world.（） A: deteriorated B: improved C: enlarged D: transformed
- What are some of the problems with genres?
- Limited resources and high unemployment rate were persistent problems that prevented rapid economic development in Britain after World War II.
- You should do exercise little _________ little. Otherwise, new problems will turn _______. Also, before doing exercise, some warm-_________ is necessary.
- It is not uncommon for there ________ problems of communication between the old and the young.