List three effects of smiling on health according to the text. (within 8 words)

① ② ③

[单选题]E．There were smiling children all the way. Charily they knew at what time the train passed their homes and they made it their business to stand along the railway, wave to complete strangers and cheer them up as they rushed towards Penang. Often whole

[单选题]71--75There were smiling children all the way. Charily they knew at what time the train passed their homes and they made it their business to stand along the railway, wave to complete strangers and cheer them up as they rushed towards Penang. Often w

[试题]执行list1.list(list1.listcount)=“80”会()。A．会产生错误信息B．list1列表框最后一个表项被改为“80”C．list1列表框会增加一个“80”表项D．指定list1列表框的表项个数为80个

[单选题]执行list1.list（list1.listcount）=“80”会（）。A . 会产生错误信息B . list1列表框最后一个表项被改为“80”C . list1列表框会增加一个“80”表项D . 指定list1列表框的表项个数为80个

[单选题]List list=new List(6,true);下列说法正确的是（）A . 每个集合都有6个元素B . 每行有6个元素C . 初始化为6行数的新滚动列表D . 集合的里不能为空值

[名词解释] After Effects

[单选题]To counteract these undesirable effects cylinder oils usually contain additives formulated to impart a high degree of （） and detergency.A . salinityB . alkalinityC . acidD . sanitary

[单选题]（ 31 ） 窗体上有 List1 、 List2 两个列表框 ， List1 中有若干列表项 （ 见图 ） ， 并有下面的程序：Private Sub Comand1_Click （）F．or k=List1.ListCount-1 To 0 Step -1If List1.Selected （ k ） ThenList2.AddItem List1.List （ k ）List1.RemoveItem kE．nd IfNext kE．nd Sub程序运行时，按照图示在 List1 中选中 2

[单选题]What are not the resulting effects on cities when those people moved out?A． There were more crimes.B． Cities were in a bad condition.C． Only one mass transit system was completed.D． Some small companies move in while larger ones moved out.

[单选题]The effects of free surface on a vessel’s initial stability do NOT depend upon the（）.A . volume of displacement of the vesselB . dimensions of the surface of the liquidC . amount of liquid in slack tanksD . specific gravity of the liquid in the tank