题目内容
(请给出正确答案)
[单选题]
下面代码的输出结果是=90&&$score<=100){$grade=优秀;}if($score>=80){$grade=良好;}if($score>=70){$grade=一般;}if($score>=60){$grade=及格;}else{$grade=不及格;}echo成绩$score,等级为$grade;?>()
A.优秀
B.良好
C.一般
D.及格
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