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【多选题】
在JavaScript中，下面代码表示获取到文本框的值，则下列选项中验证文本框为空的条件表不正确的是 ( ).(选择二项)var usrName = document.getElementById("txtName").value;A.
usrName ==""
B.
usrName.length=0
C.
usrName=""
D.
usrName.length<0< /div>
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举一反三
【简答题】I don't think the film is worth__________.
【单选题】— Have you watched the film “Avatar”? — Not yet. But I the film is worth watching.
A.
am told
B.
was told
C.
have told
D.
have been told
【单选题】The native Canadians lived in ________ with nature, for they respected nature as a provider of life.
A.
acquaintance
B.
harmony
C.
contact
D.
coordination
【简答题】The question is the film is worth seeing.A. whether
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