What does the author mean when he says, "we can't turn the clock back" (Line 1, Para. 3)
A. It's impossible to slow down the pace of change.
B. The social reality children are facing cannot be changed.
C. Lessons learned from the past should not be forgotten.
D. It's impossible to forget the past.
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土方路堤填筑方法有( )。
A. 分层填筑法、竖向填筑法、混合填筑法
B. 分层填筑法、竖向填筑法、冲击压实法
C. 竖向填筑法、分层压实发、强力夯实法
D. 竖向填筑法、冲击压实法、强力夯实法
路基冲刷防护中,以下( )属于间接防护。
A. 植物
B. 抛石
C. 石笼
D. 防洪堤
To get a pay raise, a person should ______.
A. advertise himself on the job market
B. persuade his boss to sign a long-term contract
C. try to get inside information about the organization
D. do something to impress his boss just before merit pay decisions
According to an analysis, compared with normal children today, children treated as mentally ill 50 years ago ______.
A. were less isolated physically
B. were probably less self-centered
C. probably suffered less from anxiety
D. were considered less individualistic