单项选择题
Few mathematicians are（）their futures on finding any such proof; instead, their efforts are focused on finding good, but not（）, solutions for most cases, a field of study aptly known as approximation theory.
A．betting； perfect B．developing ； convenient C．pinning ； substandard D．destroying ； exact E．establishing ； vague
单项选择题 The result of this biochemical test has caused an uproar, and ever since its publication, researchers have been full of responses of（）quality: whereas some deal with the test’s implications in a calm manner, others sound alarms.
单项选择题 STYMIE:
单项选择题 PERSEVERE:
