题目

One morning, a little mouse went out to find something to eat. He was careless and met a fierce（凶猛的） lion. The lion caught the mouse. The lion wanted to eat him. “Please let me go ,Mr. Lion.” said the mouse.“One day, I will help you.” The lion laughed, “How could a little mouse help a big lion?”“Well,” he said, “I will let you go. But you must walk more carefully.”  The mouse was very thankful. “Thank you, Mr. Lion. You are very kind. I will repay（报答） you one day,”the little mouse said. The next week, the mouse was looking for something to ea 若分式有意义，则x应满足的条件是(     ) A．x≠0   B．x≥3   C．x≠3   D．x≤3