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【单选题】
在某页面中有一个10行3列的表格,表格的id为Ptable。下列选项中能够删除最后一行的是( )A.
document.getElementById("Ptable").deleteRow(10);
B.
var delrow=document.getElementById("Ptable").lashChild; delrow.parentNode.removeChile(delRow);
C.
var index=document.getElementById("Ptable").rows.length; document.getElementById("Ptable").deleteRow(index);
D.
var index=document.getElementById("Ptable").rows.length-1; document.getElementById("Ptable").deleteRow(index);
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举一反三
【单选题】17 Increasing resources on the critical path activities may not always shorten the length of the project because:
A.
Certain activities are time-dependent rather than resource-dependent (i.e., using three ovens rather than one to bake a cake).
B.
Safety, OSHA and EPA may have placed restrictions on the number of people used on certain activities or in the physical location of the project.
C.
The skill level of the added resources might not be appropriate for the activities to be performed.
D.
Adding more resources may create additional work and produce inefficiencies (i.e., additional people may need training and supervision.)
E.
All of the above
【单选题】Increasing resources on the critical path activities may not always shorten the length of the project because:
A.
Certain activities are time-dependent rather than resource-dependent (i.e., using three ovens rather than one to bake a cake).
B.
Safety, OSHA and EPA may have placed restrictions on the number of people used on certain activities or in the physical location of the project.
C.
The skill level of the added resources might not be appropriate for the activities to be performed.
D.
Adding more resources may create additional work and produce inefficiencies (i.e., additional people may need training and supervision.)
E.
All of the above.
【单选题】Britain has always been fortunate in having plentiful energy resources. At the end of the eighteenth century these were principally coal and, in places water power from swift-flowing streams and river...
A.
rich energy resources
B.
water power
C.
the declining rural economy
D.
cheap labor
【单选题】135 Increasing resources on the critical path activities may not always shorten the length of the project because:
A.
Certain activities are time-dependent rather than resource-dependent (i.e., using three ovens rather than one to bake a cake).
B.
Safety, OSHA and EPA may have placed restrictions on the number of people used on certain activities or in the physical location of the project.
C.
The skill level of the added resources might not be appropriate for the activities to be performed.
D.
Adding more resources may create additional work and produce inefficiencies (i.e., additional people may need training and supervision.)
E.
All of the above
【单选题】● Increasing resources on the critical path activities may not always shorten the length of the project because: A Certain activities are time-dependent rather than resource-dependent (i.e., using thr...
B.
Safety, OSHA and EPA may have placed restrictions on the number of people used on certain activities or in the physical location of the project.
C.
The skill level of the added resources might not be appropriate for the activities to be performed.
D.
Adding more resources may create additional work and produce inefficiencies (i.e., additional people may need training and supervision.)
E.
All of the above.
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