题目内容

Every Easter Sunday, the president of the United States holds an annual Easter egg hunt on the White House lawn for young children.

A. 对
B. 错

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The family unit is generally considered the extended family, and it is typically big in America.

A. 对
B. 错

The Beatles who helped to secure a major place for its country in the development of pop and rock music, is an American band.

A. 对
B. 错

二阶差商是一阶差商的差商。

A. 对
B. 错

差商与插值节点的排列顺序无关。

A. 对
B. 错