【C6】A．diseasesB．symptomsC．signsD．defects

The most thrilling explanation is, unfortunately, a little defective. Some economi

A new system of quality control was brought in to overcome the defects in the finn‘s produ

Total color blindness, ______, is the result of a defect in the retina.A．a rare condition

_____, glasses can correct most sight defects in healthy eyes.A．When well－fittedB．If well－

Todd ______ payments on the car until the company had corrected the mechanical defects.A．d

______, glasses can correct most sight defects in healthy eyes.A．When well fittedB．Well fi