护士给病人输液时，药水瓶上插着两根管，一根给病人输液，另一根通过瓶盖扎进瓶内药水中，如图所示．这根“闲置”管是为了利用____．由于针头较细，为确保药液的流速，需要将药水袋提升到相对针管一般不低于1.3m的高度，由此推算针管处受到的液体压强为____ Pa．（ρ_药液=ρ_水）

                                                                                                                      钟山即事   
                                                                                                                         王安石
                                                                                                 涧水无声绕竹流，竹西花草弄春柔。
                                                                                                 茅檐相对坐终日，一鸟不鸣山更幽。

解释词语。

①杀戮：____

②儒雅：____

③执著：____ 

④不置可否：____

给下列句子选择恰当的答语。⑴Where is classroom 4？ ____    A．It's next to the art room.
⑵This is my school.____           B．Yes，it is.
⑶Is this the teachers' office?____  C．It's so beautiful!
⑷Do you have a library?____      D．Yes，we do.
⑸Where is the gym?____          E．Classroom 4 is under the art room.

“汉语盘点2016”评选活动在京揭晓，“反腐”当选中国年度词。古代为防止官员的贪污腐败，监督官员的规范行政，建立了一套监察体制。秦朝负责监察百官的是（    ）