防火墙能阻止的下列攻击是:()。
A.外部网攻击;
B.内部网攻击;
C.授权用户;
D.其他。
参考答案:A
It was unwise of him to _________ the unreliable data in his speech.
A.refer to
B.add to
C.belong to
D.point to
洋务振的教育方针是( )。