1. These days, a problem for many (parent/parents) is deciding how to control internet addiction. A: parents B: parent C: parent D: parent

已知Parent类，创建该类对象的语句的是（ ）。 A: Parentzhang=create Parent() B: Parentzhang=new Parent() C: Parentzhang=new Parent D: Parentzhang=news Parent()

The stratification of parent material (heterogeneous parent material) has a more complex influence on the material migration and soil fertility, compared with homogeneous parent material. The stratification of parent material will be inherited to soil.

When would a parent NOT be their child’s hero? A: When the parent is involved in raising money. B: When the parent does work outside the home. C: When the parent won’t do what the child wants. D: When the parent is involved in selfish activities.

下列不属于添加元素优化的是（  ）。 A: var frag=document.createDocumentFragment(); B: frag.appendChild(child); C: parent.appendChild(frag); D: getAttribute()

‏下列不属于添加元素优化的是（ ）。​ A: var frag=document.createDocumentFragment(); B: frag.appendChild(child); C: parent.appendChild(frag); D: getAttribute()

有如下程序： #include ＜iostream＞ using namespace std; class PARENT public: PARENT() cout＜＜"PARENT"; ; class SON: public PARENT public: SON() cout＜＜"SON"; ; int main() SON son; PARENT *p; p=&son; return 0; 执行上面程序的输出是 【13】 。

A parent may

jquery中，要清除指定父元素的所有子元素，以下方法中，不能实现的是 A: $(" B: parent").empty() C: $(" D: parent").children().remove() E: $(" F: parent").children().empty() G: $(" H: parent").find("*").remove()

being a single parent