【多选题】
在javascript中，下面代码表示获取文本框的值，则下列选项中验证文本框为空的条件表达式不正确的是（）
var userName=document.getElementById(txtName).value;
①
userName==
②
userName.length<=0
③
userName.length<0
④
userName.length=
【多选题】
在javascript中，下面代码表示获取文本框的值，则下列选项中验证文本框为空的条件表达式不正确的是（）var userName=document.getElementById(txtName).value;（选择二项）
①
userName==
②
userName.length(=0)
③
userName.length(0)
④
userName.length=
【单选题】
In Dreiser’s Sister Carrie, which of the following statements is NOT true about the characters in the story?
①
At the end of the story, Hurstwood’sfamily are enjoying a happy life without him.
②
Being unable to make a decent living, Hurstwood at last commits suicide.
③
In spite of her success as a famous actress Carrie does not feel happy.
④
Carrie becomes rich and helps Hurstwood out of his difficulty.
【判断题】
The true intellectuals left for Europe forever because they were not satisfied with their native country.
①
正确
②
错误
【单选题】
The duke interjected, “What you accuse us ______ is true. I am to blame.”
①
with
②
about
③
/
④
of
【单选题】
在JavaScript中，运行下面代码后的返回值是（ ）。
var flag = true;
document.write(typeof(flag));
①
undefined
②
null
③
number
④
boolean
【单选题】
— I heard they went skiing in the mountains last winter.
—It_____ true because there was little snow there.
①
may not be
②
won’ t be
③
couldn’ t be
④
mustn’ t be
【单选题】
Fulfilling one’s true potential requires setting appropriate goals and exerting theto accomplish them.
①
self-criticism
②
self-doubt
③
self-discipline
④
self-employment
【单选题】
在JavaScript中，运行下面代码后的返回值是（ ）。var flag = true;document.write(typeof(flag));（选择一项）
①
undefined
②
null
③
number
④
boolean