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【单选题】
RLC串联电路谐振的条件是( )。A.
ωL＝ωC
B.
L＝C
C.
ωL＝1/ωC
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举一反三
【单选题】—How long has Eliza been a nurse?—______
A.
Since 2002.
B.
Four years ago.
C.
In 2002.
D.
Since four years
【简答题】企业的存货包括（ ）。 A．发出存货 B．库存存货 C．在途存货 D．加工中存货 E．委托代销存货 A． B． C． D． E．
【简答题】存货包括原材料、在产品，但不包括低值易耗品。（ ）。
【单选题】—How long has Eliza been a nurse? —______ [ ]
A.
Since 2002
B.
Four years ago
C.
In 2002
D.
Four
【单选题】Bill has been working on The Wall Street Journal for eight years and never once__________late to work.
A.
he had come
B.
he has come
C.
had he come
D.
has he come
【单选题】— How long has Eliza been a nurse? — _________
A.
Since 2002.
B.
Four years ago.
C.
In 2002.
【简答题】存货包括哪些货物？为什么要拥有存货？
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