To （）how the system works，Bruce shows off the prototype of a 3D analysis tool.

We’re firmly（）to the manager’s latest decision to expan...

单项选择题We’re firmly（）to the manager’s latest decision to expand overseas market.

Mozart had an incredible capacity to（）other individuals...

单项选择题Mozart had an incredible capacity to（）other individuals，their facial gestures，their dialects.

Citric acid can be （）from the juice of oranges，lemons，l...

单项选择题Citric acid can be （）from the juice of oranges，lemons，limes or grapefruit.