it has been proven that on the earth
it has been proven that on the earth
Which is the proven document-formatting technique?（ ）
Which is the proven document-formatting technique?（ ）
Scientific evidence has proven that ________.
Scientific evidence has proven that ________.
Physical exercise is not proven to be effective in improving bad mood.
Physical exercise is not proven to be effective in improving bad mood.
Everyone should be _____ (假定) innocent until proven guilty.
Everyone should be _____ (假定) innocent until proven guilty.
Saudi Arabia has the world's proven petroleum reserves.
Saudi Arabia has the world's proven petroleum reserves.
It has proven that the best way to promote the growth and development of a healthy child is by
It has proven that the best way to promote the growth and development of a healthy child is by
3. People who exercise often are proven to have stronger __________ systems.
3. People who exercise often are proven to have stronger __________ systems.
Attempts to explain the pattern of international trade A: have been a major focus of international economists. B: have proven to be hopeless. C: have proven to be a trivial exercise. D: have been the preoccupation of economic development theorists.
Attempts to explain the pattern of international trade A: have been a major focus of international economists. B: have proven to be hopeless. C: have proven to be a trivial exercise. D: have been the preoccupation of economic development theorists.
The ARPANET was an experimental network that was converted into an operational one in 1975 after it had proven to be a success.
The ARPANET was an experimental network that was converted into an operational one in 1975 after it had proven to be a success.