在“人体欲得劳动，但不当使极尔”中，“尔”的意义是（）
A.尽
B.完
C.语气词，罢了
D.指示代词，这里
E.以上都不是
参考答案：C
解除喉痉挛的首选措施是()
A．粗针环甲膜穿刺
B．快速气管插管
C．静注琥珀胆碱
D．气管切开
E．面罩加压吸氧
Password is a secret series of (73) that enables a user to access a file, computer, or program. On multi-user systems, each user must enter his or her password before the computer will respond to (74) . The password helps ensure that (75) users do not access the computer. In addition, data files and programs may require a password.
A. powerB. authorized C. accreditD. unauthorized
