危机干预的最低目标是保护当事人,预防各种意外。 ( )
参考答案:对
投标文件必须由()签署。
A.公司经理
B.项目经理
C.委托代理人
D.投标负责人
Only when he was refused by the interviewer ________ the importance of knowing English.
A.did he realize
B.he realized
C.had he realized
D.was he realized