【单选题】听力原文: The UN Security Council has unanimously adopted a resolution renewing the UN peace-keeping force in Rwanda for another 6 months while reducing its size by more than half. (26[C]) The UN resoluti...
【简答题】.以下关于ref和out的描述哪些项是正确的?(多选) ( ) A) 使用ref参数,传递到 ref参数的参数必须最先初始化。 B) 使用out参数,传递到 out参数的参数必须最先初始化。 C) 使用ref参数,必须将参数作为 ref参数显式传递到方法。 D) 使用out参数,必须将参数作为 out参数显式传递到方法。
【单选题】A Web page includes the HTML shown in the following code segment. You need to write a JavaScript function that will dynamically format in boldface all of the hyperlinks in the ref span.Which code segm...