感温式探测器能探测到火灾发生时产生的热量（热空气）信号，并把热量信号转化为（）电信号.
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原子吸收光度法测定空气中颗粒物和气溶胶的金属元素时，分割滤膜为何必须通过滤膜中心线？
Which two types of QoS functionality will be provided by Network-Based Application Recognition？（）
A. NBAR provides the ability to configure MCQ； it is a mandatory MCQ component.
B. NBAR provides deep packet inspection and is used for advanced packet classification.
C. NBAR provides per-protocol packet and byte accounting functionality； it is used to track bandwidth utilization for all protocols described in the loaded PDLMs.
D. NBAR provides scheduling in an MQC policy map using an advanced algorithm.
电缆引入室内时，电缆的金属护套应进行屏蔽接地，电缆上挂电缆铭牌标明电缆的（）、去向。
下列属于规则式配植方式的有（）。
A. 孤植
B. 丛植
C. 群植
D. 列植
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