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【多选题】
下列关于消防验收的说法正确的是()。A.
公安机关消防机构应当自受理消防验收申请之日起三十日内出具消防验收意见
B.
公安机关消防机构对综合评定为不合格的，应当出具消防验收不合格意见，并说明理由
C.
建设单位申请消防验收，应当提供规定的材料
D.
公安机关消防机构对申报消防验收的建设工程，应当依照建设工程消防验收评定标准对已经消防设计审核合格的内容组织消防验收
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【简答题】磁电系电流表由 和 两者组成 组成。
【单选题】某企业采用月末一次加权平均法核算原材料，月初库存材料100件，每件为80元；月中又购进两批，一次150件，每件75元；另一次250件，每件85元。则月末该材料的加权平均单价为每件（ ）元。
A.
81
B.
72．5
C.
75
D.
85
【单选题】某企业采用月末一次加权平均法核算原材料，月初库存材料100件，每件为80元，月中又购进两批，一次150件，每件75元，另一次250件，每件85元，则月末该材料的加权平均单价为（ ）元。
A.
81
B.
72.5
C.
75
D.
85
【多选题】Which one is the merit of the computer?
A.
Keep in touch with our friends and family members through video chat.
B.
Efficiently find the information through search engine.
C.
Teachers can utilize online resources to make a supplement to their teaching contents.
D.
The employees have more freedom, and more flexible work schedules.
【单选题】Which one is the merit of the computer?
A.
It leads to an unhealthy and sedentary lifestyle
B.
Staring at a computer for many hours causes eye strain or headaches.
C.
The reduction of face-to-face interaction causes social isolation.
D.
It helps us find information quickly, easily,effectively and efficiently .
【简答题】磁电系电流表由 和 两者并联组成。
【多选题】Which one is the merit of the computer?
A.
Teachers can utilize online resources to make a supplement to their teaching contents.
B.
Efficiently find the information through search engine.
C.
The employees have more freedom, and more flexible work schedules.
D.
Keep in touch with our friends and family members through video chat.
【简答题】磁电系电流表由 和 两者 组成。
【多选题】Which one is not the merit of the computer?
A.
Keep in touch with our friends and family members through video chat
B.
The employees have more freedom and more flexible work.
C.
Rely too much on computer.
D.
Leading to an unhealthy and sedentary lifestyle.
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