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名词解释题
视野（visual field）
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考题
Which of the following statements is NOT true?（）AThe open field system provided a good opportunity to experiment.BThe open field system wasted land.CThe open field system was wasteful of labor and time.DThe open field system made livestock farming difficult.
考题
Which of the following statements is NOT true?（）A、The open field system provided a good opportunity to experiment.B、The open field system wasted land.C、The open field system was wasteful of labor and time.D、The open field system made livestock farming difficult.
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一个只有一个象素的水平线在电视机屏幕上容易闪烁，为了消除这类闪烁，需要：（）A、在素材的Field option中设置reverse field dominanceB、在素材的Field option中设置always denterlaceC、在素材的Field option中设置Flickerre movalD、在素材的Field option中设置interlace consecutive frames
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Yuri created a formula for a button. The code is supposed to set the value of an existing field called title. He used the following formula: title:= @propercase (title); after the foumula runs ,the title field is null. Why? （）A、the value of one field cannot be set from the value in another field B、the text string in the formula is set to null. Thus notes cannot validate the formula C、when setting the value of a field , the formula must be in the field‟s input validation event D、the formula does not specify that title is an existing field. Thus it is interpreted as a temporary variable
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在下列表达式中，（）的运算结果是数值型。A、"Visual "+"FoxPro"B、"Visual "-"FoxPro"C、len（"Visual FoxPro"）D、"Visual"$"Visual FoxPro"
考题
若AA="Visual FoxPro"，则表达式UPPER（SUBS（AA，1，1））+LOWER（SUBS（AA，2））的值是（）。A、Visual foxproB、Visual FoxProC、visual FOXPROD、VISUAL foxpro
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Which statement correctly describes the disabling of IP TTL propagation in an MPLS network？（）A、The TTL field from the IP packet is copied into the TTL field of the MPLS label header at the ingress edge LSRB、TTL propagation cannot be disabled in an MPLS domainC、TTL propagation is only disabled on the ingress edge LSRD、The TTL field of the MPLS label header is set to 255E、The TTL field of the IP packet is set to 0
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Which of the following is true about the MPLS header and its EXP field size？（）A、The MPLS header is 2 bytes，and the EXP field is 3 bits long.B、The MPLS header is 1 byte，and the EXP field is 3 bits long.C、The MPLS header is 4 bytes，and the EXP field is 3 bits long.D、The MPLS header is 3 bytes，and the EXP field is 3 bits long.
考题
jim has created a field hint for the address field. Users tell him this text disappears when they click in the address field. which one of the following is most likely reason?（）A、 the address field is computed B、 jim should have used a text popup C、 jim stored the field hint in the database D、 field hint only display when the user has not clicked in the field （field hint）
考题
You are developing a Windows Forms application that contains a DataGridView control. The DataGridView capture the customer's name, address, and phone number. You have been asked to provide data validation in a DataGridView to prevent users from leaving the.. You need to ensure that users cannot tab out of the name field without entering data What should you do ?（）A、Validate the name field in the CellValidating event. Set e.Cancel = true if the name field isB、Validate the name field in the CellErrorTextChanged event. Get e.RowIndex if the name field ..C、Validate the name field in the CellEnter event. Set the focus on the name field if the name ...D、Validate the name field in the CancelRowEdit event. Set the focus on the name field if the name ...
考题
单选题Which of the following statements is NOT true?（）A
The open field system provided a good opportunity to experiment.B
The open field system wasted land.C
The open field system was wasteful of labor and time.D
The open field system made livestock farming difficult.
考题
单选题An icebreaker assisting a vessel through an ice field would display a visual signal consisting of the code letter “E” (Echo) to signify that “（）”.A
I am altering my course to starboardB
I am altering my course to portC
I am operating astern propulsionD
My vessel is stopped and making no way through the water
考题
单选题jim has created a field hint for the address field. Users tell him this text disappears when they click in the address field. which one of the following is most likely reason?（）A
the address field is computed B
jim should have used a text popup C
jim stored the field hint in the database D
field hint only display when the user has not clicked in the field （field hint）
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单选题The word decathlon in paragraph 3 probably means _____.A
jumpingB
five track and field eventsC
throwingD
ten track and field events
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多选题下列表达式中，运算结果为字符型的有（）AAT（’FoxPro’，’Visual FoxPro’）BLEN（’Visual FoxPro’）CSUBSTR（’Visual FoxPro’，8，6）=’FoxPro’DLEFT（’Visual FoxPro’，6）=’Visual’ERIGHT（’Visual FoxPro’，6）=’FoxPro’
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单选题Adam Smith was a professor of philosophy, a commissioner of customs, and founded the field of modern economics.A
a commissioner of customs, and founded the field of modem economicsB
worked as commissioner of customs, and founded the field of modern economicsC
a commissioner of customs, and the founder of the field of modern economicsD
commissioned customs, and was the founder of the field of modern economicsE
a commissioner of customs, and was the founder of the field of modem economics
考题
单选题Yuri created a formula for a button. The code is supposed to set the value of an existing field called title. He used the following formula: title:= @propercase (title); after the foumula runs ,the title field is null. Why? （）A
the value of one field cannot be set from the value in another field B
the text string in the formula is set to null. Thus notes cannot validate the formula C
when setting the value of a field , the formula must be in the field‟s input validation event D
the formula does not specify that title is an existing field. Thus it is interpreted as a temporary variable
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单选题To provide quality of service （QoS） for voice traffic in an IEEE 802.1 q network， which class of service （CoS） value should be used in the 3-bit， user priority bits （PRI） field？ （）A
The PRI field should contain the Cos value of 010B
The PRI field should contain the Cos value of 011C
The PRI field should contain the Cos value of 100D
The PRI field should contain the Cos value of 101E
The PRI field should contain the Cos value of 110F
The PRI field should contain the CoS value of 111
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单选题The frequency of an AC generator is adjusted by means of the （）A
main alternator field rheostatB
exciter field rheostatC
prime mover governor controlD
equalizing reactor
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单选题Which of the following is true about the MPLS header and its EXP field size？（）A
The MPLS header is 2 bytes，and the EXP field is 3 bits long.B
The MPLS header is 1 byte，and the EXP field is 3 bits long.C
The MPLS header is 4 bytes，and the EXP field is 3 bits long.D
The MPLS header is 3 bytes，and the EXP field is 3 bits long.
考题
单选题一个只有一个象素的水平线在电视机屏幕上容易闪烁，为了消除这类闪烁，需要：（）A
在素材的Field option中设置reverse field dominanceB
在素材的Field option中设置always denterlaceC
在素材的Field option中设置Flickerre movalD
在素材的Field option中设置interlace consecutive frames
考题
单选题The most common type of AC service generator found aboard ship is the stationary （）.A
electromagnetic field, revolving armature typeB
electromagnetic field, oscillatory armature typeC
armature, oscillatory electromagnet field typeD
armature, rotating electromagnetic field type
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