Scientists have established a (connect) ____ between smoking
Scientists have established a (connect) ____ between smoking
A connect with patch server could not be established
scientists have been resreaching what effect smoking has on
____ scientists have done a lot of researth on the (H1H1) fl
____ scientists have done a lot of research on A1H1N1 flu,th
If you ____ stop smoking,you will only have a bad cough.
英语翻译Mechanical observations have established as a priciple.
改错Scientists have already made a sheep
____,some famous scientists have the qualities of being both
Scientists have many theorise about how the universe ____ in
With the population explosion,scientists will have to ____ n
Scientists have ____ that motion is the source of life