题目内容：

请认真阅读下面短文，从短文后各题所给的A,B,C,D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。

Nation	2017 rank	2016 rank	Score change 2017 vs. 2016
Germany	1	2	+0.99
France	2	5	+1.56
United Kingdom	3	3	+1.27
Canada	4	4	+0.96
Japan	5	7	+2.12
United States	6	1	－0.63
Italy	7	6	+0.74
Switzerland	8	8	+1.34
Australia	9	9	+0.76
Sweden	10	10	+1.30

 

 

1.Haw many countries remain the same rank in the recent two years?

A. 3.    B. 4.    C. 5.    D. 6.

2.Which country has the biggest change in ranking between 2016 and 2017?

A. France.    B. Italy.    C. Japan.    D. United States.