问题
单项选择题
接二次投料法搅拌棍凝土时,第一次投料的材料为( )。
A.水泥、石子
B.水泥、砂
C.水泥、砂、水
D.水泥、石子、水
答案
参考答案:C
接二次投料法搅拌棍凝土时,第一次投料的材料为( )。
A.水泥、石子
B.水泥、砂
C.水泥、砂、水
D.水泥、石子、水
参考答案:C
小题2:The good news Miss White told us made everyone _______________ up. 小题3:Julie met her good friend on the way to school and they talked _______________. 小题4:The problem is really difficult.______________ Lucy nor her sister can work it out. 小题5:I didn’t know what was _____________ in the math class yesterday because I was ill at home. |