【简答题】CHECK约束被称为______约束,UNIQQUE约束被称为_______约束。
【单选题】Of the two physics problems, Martha just finished ______ one. A. the most difficult B. the least difficult C. the less difficult
【单选题】Do you think maths is _____ than English? [ ]
【单选题】清除试管内壁沾染的苯酚,可以选用的试剂是
【判断题】《威尼斯宪章》更多地关注历史纪念物保护的原真实性和整体性。()
【单选题】______, it was completed on time.
A.
Difficult as the task was
B.
Difficult as was the task
C.
As the task was difficult
D.
As was the task difficult
【简答题】CHECK 约束被称为 约束,UNIQUE约束被称为 约束。