【多选题】如何预防痔疮发生?()
A.
平时应注意,合理膳食规律,减少辛辣,增加粗粮,蔬菜等富含纤维素的
【单选题】下列词语中哪个选项有错别字,请填入括号里。( )
【单选题】关于旋毛形线虫的描述,下列哪项是错误的 ?
【简答题】根据句意及括号内所给单词的提示填空,每空一词。 1. ______(be) your pencil red? No, it isn't. 2. The girl is my sister. __ (she) name is Helen. 3. He is my brother. He has two______(dictionary). 4. Where are your ______(par...