A. arbitrary B. voluntary C. involuntary D. obligatory
A. put B. enlisted C. attached D. stuck
As B. Unless C. If D. When
A. considered B. concerned C. regarded D. combined
A. 在制度设计制定上下功夫 B. 不断创新、健全和完善社会各个领域的制度 C. 真正落实各项制度 D. 让遵守制度者得益,违反制度者受损