When using a certified cleaning service what specific items must occur?(Choose 2

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试卷: LEED v4 OM模拟题C卷英文[查看]
When using a certified cleaning service what specific items must occur?(Choose 2)
当使用了有资质的清洁服务，哪项会发生？（选两项）
A: The vendor must hold occupant training at least yearly 承包商必须至少每年对住户进行培训
B: An audit of the vendor\'s certification must be completed within 12 months of the performance period供应商必须在绩效期12个月内进行审计
C: The cleaning service must contract separately with all tenants必须单独与各个租户签订清洁服务合同
D: The vendor must develop a plan for reduced water, energy, and toxic chemical use 承包商必须制定一个计划来降低用水量，用能量以及有毒化学品的使用

参考答案: BD

本题解释:
选择BD，本题解释When using a certified cleaning service:
Confirm that the building was audited by the third party within 12 months of the end of the performance period.
In addition, the cleaning contractor must develop goals and strategies for promoting the conservation of energy, water, and chemicals used for cleaning the building.