要延缓橡胶的老化进程,加入抗氧剂的作用是()和()。
参考答案:终止链增长反应;阻止链引发的发生
中国封建社会最后一部法典是( )。
A.《大清律例》
B.《大清律集解附例》
C.《大清新刑律》
D.《大清律集解》
—Could you please tell me ?
—Sorry, you can turn to Mr. Lee for help.
A.how long can man live without water
B.whether Yao Ming would play for Rockets or not
C.how I can keep myself safe from the flu
D.why did a serious landslide happen in Zhouqu, Gansu Province