皮皮学，免费搜题
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【简答题】
具有兼作接地的但不是为此目的而专门设置的与大地有良好接触的各种金属构件、管、钢筋混凝土中的钢筋、埋地金属管道和设施,称为 。
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参考解析：
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皮皮学刷刷变学霸
举一反三
【简答题】什么是条件致病菌，条件致病菌引起感染的条件有哪些？
【单选题】Question 4 is based on the news report you have just heard.
A.
Recruit and train more firefighters.
B.
Pull down the deserted shopping mall.
C.
Turn the shopping mall into an amusement park.
D.
Find money to renovate the local neighborhood.
【多选题】一般情况下机械振动系统至少包括以下器件（ ）。
A.
具有惯性的器件
B.
能使具有惯性的器件受到恢复力作用的器件
C.
能使具有惯性的器件受到阻尼作用的器件
D.
能使具有惯性的器件振动衰减的器件
【单选题】Question 4 is based on the news report you have just heard.
A.
The lack of monitoring faulty equipment.
B.
The long history of the dam.
C.
The violent storm.
D.
The failure in the draining system
【单选题】Question 4 is based on the news report you have just heard.
A.
The darkness and cold.
B.
The heavy snow and fog.
C.
The biting winds.
D.
The ice all around.
【单选题】Question 4 is based on the news report you have just heard.
A.
It apologized to its customers.
B.
It was forced to kill its bees.
C.
It lost a huge stock of bees.
D.
It lost 2.5 million dollars.
【单选题】Question 4 is based on the news report you have just heard.
A.
Customers' higher demands.
B.
The inefficiency of employees.
C.
Increased variety of products.
D.
The rising number of customers.
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