【多选题】拉斯韦尔的传播学贡献有( )

【简答题】【名词解释】阿拉斯加湾

【简答题】Jack London was famous American Writer. He (76) was born in January 12th,1876. His family was very poor, 　　　　　 (77) and he had to leave school in order make (78) money. He worked hard in many differ...

【简答题】利用拉普拉斯变换及其逆变换求解下列微分方程：y'-y=0，y(0)=1．

【判断题】“希克拉斯”是无袖宽松筒形外套，前后衣片完全一样，与今天的背带裙类似

【简答题】【名词解释】索卡拉斯

【多选题】委拉斯开兹的作品包括（）。

【简答题】NBA达拉斯小牛队的队徽上有一只什么动物?

【简答题】阿拉斯加地区最佳航期是( )月到( )月。

【简答题】乌拉斯台