拆除管道及容器时,必须清除残留物,并采取相应措施确保安全后,方可进行拆除施工。()

A. more or less
B. even
C. as if
D. as long as

A. which
B. where
C. who
D. whom

A. They should realize their key role in cultivating future successful leaders.
B. They should leave students alone and not give them guide anymore.
C. They should rethink their model of fostering students" leadership abilities.
D. They should encourage students to be more open to different answers.

A. young adults suffer the most when the recession hit
B. young adults are getting full-time jobs and their earnings improved significantly
C. fewer young adults live independently because the labor market is still in recovery
D. Millennials would move out of their parents" house when the economy improved