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【多选题】
关于投标报价的编制原则，下列说法正确的有（ ）。A.
投标价应由投标人或受其委托，具有相应资质的工程造价咨询人员编制
B.
投标人的投标报价不得低于成本
C.
以企业定额、施工定额等作为投标报价计算的基本条件
D.
根据工程发承包模式考虑投标报价的费用内容和计算深度
E.
报价计算方法要科学严谨，简明适用
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举一反三
【单选题】As shown in the circuit, the circuit is in a steady state before the switch K is opened, and the switch K is turned on at t=0. The initial vlotage value of the inductance u(0+) is equal to ________.Ch...
A.
0V
B.
20V
C.
40/3V
D.
40V
【简答题】是从组织的最高权力机构直至最底层管理人员的领导系列。
【单选题】In which circuit all devices could be controlled by one switch ?
A.
parallel circuit
B.
series circuit
C.
series parallel circuit
D.
【简答题】是从组织的最高权力机构直至最低层管理人员的领导系列。
【单选题】In which circuit all devices could be controlled by one switch ?( )
A.
parallel circuit
B.
series circuit
【单选题】In which circuit all devices could be controlled by one switch ?
A.
parallel circuit
B.
series circuit
C.
series parallel circuit
【单选题】What type of switch would be used to turn on a single-wire circuit when the switch is pressed (activated) by the pilot?
A.
Single-pole, single-throw (SPST), two-position normally open (NO)
B.
Single-pole, single-throw (SPST), single-position
C.
Single-pole, double-throw (SPDT), two-position
D.
Single-pole, double-throw (SPDT), single-position normally open (NO)
【单选题】As shown in the circuit, the circuit has been in a steady state before the switch is opened, and the switch is turned on at t=0. The initial voltage value of the resistor of 2Ω is u(0+)=________V. Cho...
A.
12V
B.
-12V
C.
18V
D.
-20V
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