【判断题】建筑砂浆中的砂,不能含有有害杂质,含泥量也要小于10%。()
【简答题】听短文,根据所听内容,找出正确的答案。 1. What time does he get up on Sundays? [ ] A. He gets up at six. B. He gets up at six thirty. C. He gets up at seven. 2. Where does he go after breakfast? [ ] A. He goes t...
【判断题】公安机关是专门维护社会治安的机关。 ( )
【简答题】阅读短文,回答问题。 It was a fine day last Sunday. Tom got up early. He got up at six. He had breakfast at seven. He ate three sandwiches for his breakfast. Then he did his homework at eight and played compute...
【简答题】协调个人与他人关系应坚持的原则是( )。 A.平等原则 B.诚信原则 C.宽容原则 D.互助原则