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【单选题】
下面元素周期表中全部是金属元素的区域为( )A.
只有s区
B.
只有d区
C.
s区、d区和ds区
D.
d区和ds区
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】完成视听说教材第29页练习1.
【单选题】If fuel oil were being discharged from the waster outlet of a fuel oil disk type centrifuge, operated as separator, you should___________.
A.
remove the discharge ring
B.
re-prime the purifier
C.
the centrifuge to its proper speed
D.
install an additional discharge ring
【单选题】The fuel oil system for a diesel engine can be considered in two parts_____ and _____ systems.
A.
fuel supply, fuel injection
B.
fuel supply, fuel consumption
C.
fuel consumption, fuel injection
D.
fuel consumption, fuel atomisation
【简答题】B2-Unit 1 应用型视听说教程 2.rar
【简答题】体育管理学形成的影响因素是什么?
【单选题】Machinery driving fuel oil transfer and fuel oil service pumps must be fitted with a remote means of stopping the machinery from _____.
A.
within the space concerned
B.
outside the space concerned
C.
the throttle station
D.
within the fire room
【简答题】视听说教材92页练习2.
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