阅读理解。 The new dollar coin honors Thomas Jefferson, the nation's third president. The nation's first president, George Washington, was honored with a similar coin in February. A coin honoring second president John Adams appeared in May. And one honoring fourth president James Madison will follow in November. Congress created the program in the Presidential Dollar Coin Act of 2005. it calls for the secretary of the treasury to design and produce presidential dollar coins honoring each president in the order in which they served. Four coins will be released each year. The coins show the president and his years in office on one side. The other side shows the Statue of Liberty. The presidential coins are the same size and color and have an educational value. They can teach the American public about past presidents. A study carried out last month found that the public does not really know much about the presidents. Only about thirty percent of Americans could name Thomas Jefferson as the nation's third president. Ninety-four percent knew that George Washington was the first president. But only seven percent could name the first four presidents in order. 1. How many presidential coins have been released by now according to Para.1 _____. A. None B. Two C. Three D. Four 2. According to the passage, presidential coins _____. A. are released in the order in which presidents served B. will be released four coins each year C. are the same size and color and have an educational value D. all the above 3. A study showed the following statements EXCEPT ______. A. only about 30% of Americans could know Thomas Jefferson B. 94percent knew that George Washington was the first president C. only seven percent could name the first four presidents in order D. only about 30% of Americans could name Thomas Jefferson as the nation's third president 4. The presidential coins aims to _____. A. teach the American public about past presidents B. release some new coins for the public C. help collectors of coins D. show America are rich and developed