The six corridors build a bridge for the Asian economic circle and the European economic circle. They have played an important role in strengthening connectivity between countries and _____ an efficient and smooth Eurasian market.

Which of the following is true about the Arctic National Wildlife Refuge? A: It is a huge wildlife park. B: It is the largest protected wildness region in the US. C: It located within the arctic circle, in the region of Russia. D: It is the largest volcano park in the arctic circle.

The theory has finally in the academic circle.

1-02. This formula is used to __________ the area of a circle.

Suppose a particle moves in a circle. Which statement is correct?

中国大学MOOC: Japanese English belongs to the Expanding Circle.

中国大学MOOC: The theory has finally ______ in the academic circle.

This formula is used to______ the area of a circle. A: calculating B: calculate

定义一个包含3个元素的类Circle的对象数组x，下列哪种写法是错误的？（ ） A: Circle x[ ] = new Circle[3]; B: Circle [ ]x = new Circle[3]; C: Circle x[3] = new Cirlce( ); D: Circle x[ ] = { new Circle(), new Circle(), new Circle() };

假设类Circle只定义了一个"Circle(int x){......}"形式的构造方法，则下列新建对象语句中错误的是（ ）。 A: Circle obj = new Circle(10); B: Circle obj; obj = new Circle(10); C: Circle obj = new Circle(); D: Circle obj = new Circle(10/3);