下列简笔画能够形象反映一战爆发前世界形势的是（    ）

综合短文填空，选择正确单词填入相应的空格.

    People never travel as often as today in China. In the past, few people could travel on ____ to other countries. But today more and more Chinese people travel ____they now are becoming richer and have enough money for travel. The special plane for tourists ____ travel____ expensive than ever before. Most people enjoy ____ countries that are different from ____own. They also like to meet people and eat new food. Tourism causes many____  in Chinese people’s lives. People build new hotels and ____some people____ interesting places to ____ . Now Tourism is a big business.

我国濒临的海洋，从南到北依次是（　　）

如图，在△ABC中，D、E、F分别是边AB、AC、BC上的点，连接EF，CD相交于点G，若四边形BDEF是平行四边形，则下列说法不正确的是（　　）