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【多选题】
U8采购系统中对普通业务是否必有订单的选项设置描述错误的是（）。A.
若选项中选中，普通业务必有订单，则所有订单必须参照订单才能生成
B.
选项中直运业务必有订单为灰色，是由于受控于销售模块所以不可更改
C.
必有订单时，拷贝单据的“执行所拷贝的记录”选项置灰，不可修改
D.
参照单据时，必有订单不允许增行；非必有订单时也不允许增行
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【单选题】S1: Is there any difference between the new type and the old one？ S2: There is a solenoid valve in the starting system. Q: What is the difference between the new type and the old one? 02020dh004
A.
There is a solenoid valve in the starting system
B.
There is a solenoid valve in the fuel oil system
C.
There is a solenoid valve in the injection system
D.
There is a solenoid valve in the lubrication system
【单选题】Fuel shutoff solenoid is controlled by the ( ).
A.
ECU
B.
PWM
C.
PCM
D.
none of above
【单选题】The current flowing in a long thin solenoid is linearly increasing.
A.
The induced electric field exists only inside the solenoid.
B.
The induced electric field exists only outside the solenoid.
C.
The induced electric field exists both inside and outside the solenoid.
D.
No induced electric field exists both inside and outside the solenoid.
【单选题】The starter solenoid is _______ operated heavy duty switch.
A.
an electromagnetically
B.
an electrically
C.
a hydraulically
D.
an automatically
【单选题】A solenoid is 3.0 cm long and has a radius of 0.50 cm. It is wrapped with 500 turns of wire carrying a current of 2.0A. The magnetic field at the center of the solenoid is:
A.
9.9 × T
B.
1.3 × T
C.
4.2 × T
D.
10 T
【单选题】A small planar loop is placed inside a straight solenoid. When the angle between the normal direction of the loop and the axis of the solenoid is gradually increased from 0to 90 degree, how does the m...
A.
Does not change.
B.
Increases.
C.
Decreases.
D.
Decreases first and then increases.
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