题目内容

线性常微分方程的解通常是由两部分组成：通解+特解。通解常常根据初始条件求得。

A. 对
B. 错

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根据上面视频内容在横线上填上正确的单词。Acourtyard residence, sì hé yuàn , is a yard enclosed by houses in four 1 .It is a closed residence with only one gate leading to the outside.

Houses on the north are the largest ones andused as the2 bedrooms.

Houses on the twoflanksare the residencesof their3 .The arrangement representsthehierarchyina family.

Thescreen wallstands behind the gate toprotect the 4from wind-blown sand.Chinese believe that the screen wall can alsoward off bad luck.