吊篮的吊梁下装有可伸缩的护墙轮，其作用是为了保护墙面。
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行人应当在人行道内行走，没有人行道的靠道路右侧行走。（）
A. 正确
B. 错误
关于房屋建筑工程竣工验收备案事宜的说法，正确的是（）。
A. 建设单位应当自工程竣工验收之日起15d内，依照规定，向工程所在地的县级以上地方人民政府建设行政主管部门备案
B. 工程质量监督机构应当在工程竣工验收之日起15d内，向备案机关提交工程质量监督报告
C. 工程竣工验收备案表一式两分，一份由建设单位保存，一份由县级以上地方人民政府建设行政主管部门存档
D. 备案机关发现建设单位在竣工验收过程中有违反国家有关建设工程质量管理规定行为的，应当在工程竣工验收合格之日起15d内，责令停止使用，重新组织竣工验收
An administrator analyzes a poorly performing system and suspects that the issue is related to CPU resource. Upon reviewing output of vmstat, the administrator is concerned with the values in the ‘pc’ and ‘ec’ columns. Which definition describes these two headings?（）
A. 'pc' refers to the number of physical processors consumed, while 'ec' refers to the percentage of entitled capacity consumed.
B. 'pc' refers to the 'physical CPUs' and lists how many are left un-allocated, while ec' refers to the 'entitled CPUs' and lists what amount is currently allocated to the LPA
C. 'pc' refers to the 'processor count' and reflects how many CPUs are allocated to the LPAR, while 'ec ' refers to the 'extra capacity' and lists how much above the LPAR entitlement is being consumed.
D. 'pc' refers to 'processor cards' and reflects how many MCM modules are actually being used by this LPAR, while 'ec' refers to the 'entitled CPUs'and lists what amount is currently allocated to the LPA
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