【简答题】常用的轧辊材料有合金锻钢,(),和铸铁。
【单选题】The author ______.
A.
believe that most people are superstitious
B.
believe that very few people are superstitious
C.
believes that there are still some evidences of superstitions in what we say and what we do
【单选题】与《共同纲领》相比,1954年《中华人民共和国宪法》的新特点是
【简答题】显示器的主要类型有:球面CRT显示器、【 】和液晶显示器。
【简答题】设O为坐标原点,M(2,1),点N(x,y)满足 ,则 的最大值是 A 9 B 2 C 6 D 14
【简答题】显示器的类型有 “ ” 显示器和“ ”显示器两种。