From Shanghai to Rotterdam, Europe, what channel should I cross the continental boundary to take the northeast channel?

(1) The longitude and latitude of Shanghai are 31°N and 122°E；;

(2) From Shanghai to Rotterdam in Europe, the traditional waterway must pass through the Straits of Malacca; To take the northeast waterway, you should cross the continental boundary ② Bering Strait. < P > (3) A is South America; From Shanghai to new york in the United States, take the Northwest Passage, and the ocean that does not pass through is the Indian Ocean. < P > (4) Take the Arctic Route, which is the biggest threat to shipping vessels. China's efforts to open up Arctic routes have greatly shortened the transportation cycle, reduced transportation costs and improved economic benefits. Promote the economic development in the northern coastal areas of China; Strengthen China's economic ties with countries and regions along the northern route; Increasing the choice of foreign communication channels is conducive to slowing down the dependence on Indian Ocean routes and dispersing the safety risks of marine transportation. < P > Therefore, the answers are: < P > (1) 31 N, 122°E；;

(2) Malacca; Bering;

(3) South America; India;

(4) sea ice floes; Shorten transportation cycle, reduce transportation cost and improve economic benefits; Promote the economic development in the northern coastal areas of China; Strengthen China's economic ties with countries and regions along the northern route.