施工安全管理策划必须坚持( )的原则。
A.安全第一,质量为主
B.安全第一,生产为主
C.安全第一,以人为本
D.安全第一,预防为主
参考答案:D
.________, I have never seen anyone who’s as capable as John.
A.As long as I have traveled
B.Now that I have traveled too much
C.Much as I have traveled
D.As I have traveled too much
Outlook Express 是一个()处理程序。
A.文字
B.表格
C.电子邮件
D.幻灯片