题目内容：
从管道阻力损失的外因来看，流体在管路中的阻力损失可分为（）损失两类。A．主管阻力
B．弯头阻力
C．阀门阻力
D．局部阻力
参考答案：
多选：从管道阻力损失的外因来看，流体在管路中的阻力损失可分为（）损失两类。A．主管阻力B．弯头阻力C．阀门阻力D．局部阻力
- 题目分类：测井工考试
- 题目类型：多选
- 查看权限：VIP
A．主管阻力
B．弯头阻力
C．阀门阻力
D．局部阻力
A．主管阻力
B．弯头阻力
C．阀门阻力
D．局部阻力
根据网关的用户和规格，可以将媒体网关分为以下哪几种？（）A．住宅网关B．接入网关C．资源网关D．无线网关E．商业网关
根据网关的用户和规格，可以将媒体网关分为以下哪几种？（）A．住宅网关B．接入网关C．资源网关D．无线网关E．商业网关
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- What is she?- _________A. She is a typist. B. She is talking to her friend C
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