【简答题】氢细菌的营养类型是( ),大肠杆菌的营养类型是( ),螺旋藻的营养类型是( ),红螺菌的营养类型是( )。
【单选题】已知水泥消耗量是41200吨,损耗率是3%,则水泥的净用量为( )吨。
【简答题】It’ s advisable to make travel preparations early if you want to have a nice time during your trip in a foreign country. First, you should apply for a passport and visa. It is easier for you to finish...
【判断题】经济具有内在的发展规律,也会受到外生冲击的影响。
【单选题】已知水泥消耗量是41200吨,损耗率是3%,那么水泥的净耗量是( )吨。
【判断题】用鼠标单击圆周标注圆的半径尺寸,双击圆周标注圆的直径尺寸。