【简答题】4 Choose the correct word. ► There was an experiment/exploration to
test the levels of sugar in the blood. experiment 1 These animals only explore/exist in
South America - nowhere else. ____...
【简答题】The improbable chain of s that leads Alexander Fleming 1.______ to discover penicillin in 1928 is the stuff which scientific myths 2.______ are made. It was a discovery that would change the cour...