入磨物料温度过高,会造成石膏脱水,影响水泥质量。
参考答案:错
Helen has ____French and can speak fluently after a short stay with her aunt in Paris.
A.picked up
B.taken up
C.put up
D.made up
版式设计的基本类型中对称型一般以()居多。
A.上下对称
B.左右对称
C.倾斜对称
D.绝对对称