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【单选题】
在纯电感正弦交流电路中,下列各式正确的是 ( ) 。A.
I＝u/x L
B.
i＝u/x L
C.
I ＝ U/ ω L
D.
D ＝ ILU
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举一反三
【单选题】A bonding cable should be connected for cargo operations aboards a tank vessel as soon as the（）.
A.
cargo has been loaded or discharged
B.
cargo ghose is connected
C.
cargo pumps are started
D.
vessel is ready to handle cargo
【单选题】A bonding cable should be connected for cargo operations aboard a tank vessel as soon as the _______________.
A.
cargo has been loaded or discharged
B.
cargo hose is connected
C.
cargo pumps are started
D.
vessel is ready to handle cargo
【单选题】The bonding type of Aluminum is
A.
Ionic bonding Ionic bonding
B.
Metallic bonding
C.
Covalent bonding
D.
Hydrogen bonding
【单选题】The bonding type of Polyethylene is_________.
A.
Ionic bonding
B.
Metallic bonding
C.
Covalent bonding
D.
Hydrogen bonding
【单选题】The major bonding in ceramic is ( ).
A.
Van de Waals bonding
B.
Metallic bonding
C.
Covalent bonding
D.
Ionic bonding
【单选题】A bonding cable should be connected for cargo operations aboard a tank vessel as soon as the ______．
A.
Cargo has been loaded or discharged
B.
Cargo hose is connected
C.
Cargo pumps are started
D.
Vessel is ready to handle cargo
【多选题】What are the types of bonding in chemistry?
A.
Covalent bond
B.
Ionic bonding
C.
hydrogen bonding
D.
Van der Waals bonding
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