把往复泵分为活塞泵、柱塞泵和隔膜泵的分类方法是（）。
A. 按工作机构分
B. 按作用特点力分
C. 按缸数分
查看答案
每个科目的考试成绩单参考人和考试员应当当场共同签名。
A. 正确
B. 错误
进入缺氧或有毒气体设备内作业时，应将相通的管道（）隔绝。
地面NDB（远台）发射莫尔斯电码识别信号是多少个英文字符（）.
A. 一个
B. 二个
C. 三个
Your company uses Microsoft Application Virtualization (App-V). You maintain the sequencing for applications. You need to add a template to an existing sequenced application. What should you do?（）
A. Edit the application, add the template, and then save the application with a new name.
B. Sequence the template as a new application to the original application installation folder.
C. Restore the sequencing computer and add the template to the original application installation folder.
D. Upgrade the existing sequencing package, add the template to the package, and then save the application.
微信支付 
支付宝支付