Other countries are also expected to begin clinical gene therapy trials soon.（）

FDA has approved the plan of using HIV to cure cancer i...

单项选择题FDA has approved the plan of using HIV to cure cancer in humans.（）

The idea of using HIV for a beneficial purpose has been...

单项选择题The idea of using HIV for a beneficial purpose has been widely accepted.（）

HIV can be safely used to cure cancer only if the deadl...

单项选择题HIV can be safely used to cure cancer only if the deadly genes have been removed.（）