单项选择题
If wool is put into hot water, it tends to shrink.()
A. disappear B. expand C. break D. contract
单项选择题 He decided to overcome his shortcomings.()
单项选择题 The emphasis on the importance of education has spurred scientific research.
单项选择题 There are notices to the contrary, a great deal of technical writing is at best awkward and at worst actually unclear.
