我国第一阶梯和第二阶梯分界线是____ 

根据短文理解，从A、B、C三个选项中选择最佳答案填空。

    Jimmy is an English boy. He wants to have a friend in China. He likes 1 very much. It's relaxing for him. He plays sports 2 his classmates after class. He has five soccer balls, two 3 and one basketball. But he doesn't like tennis. He thinks it's 4. 

Jimmy has a healthy eating 5. He likes fruit and vegetables. 6 are his favorite (最喜欢的) vegetables. He often (经常) has fruit salad 7 dinner. He doesn't eat 8 or ice-cream. He doesn't want to be 9. 

    Do you like him? Do you 10 to be his friend? You can e-mail him at jimmy 012@ yahoo.cn.

接种甲型H1N1流感疫苗是目前预防甲流的有效措施。请回答以下相关问题。

下列各句中，没有语病的一项是（    ）