题目

April Fool’s Day is coming! But do you know how April Fool’s Day comes?In the sixteenth century in France, the start of the New Year was on April 1st. People celebrated the New Year in the same way as it is today. They held parties and danced into the late night. Then in 1562, Pope Gregory introduced a new calendar into the Christian(基督教的)world, and the new year fell on January 1st. Some people didn’t believe the change in the date, so they celebrated the New Year on April 1st. Others played tricks on them and called them “April fools”.Today Americans play small tricks on fri关于x的方程(a+1)x＝6x+3的解是负数，则a的取值是A.5B.小于5C.小于或等于5D.大于5