检查输入的授权柜员密码是否正确，如果不正确，则拒绝交易并提示（）。 ["密码输入不正确","输入的密码无效","无效值","交易失败"]
按（）的重要程度和经费需求的大小可分为重大项目、重点项目、一般（面上）项目等。 ["研究性质","研究功能","研究内容","研究层次"]
实现多元化（多角化）增长应具备的条件有哪些？
确定一条直线与标准方向的关系称为（） ["直线定向","直线定线","角度测量","视距测量"]
If a hydraulic pump on a winch accidentally stops while hoisting,the load will stay suspended because（）. ["a check valve will close that prevents reverse circulation","a centrifugal counterweight counteracts the force of gravity","the electric pump motor cut out","the control lever will move to the stop positio"]
生育期保健有几级预防？
