计算机病毒的最普遍的()是通过软盘传染。
A、扩散过程
B、形成方式
C、传播方式
D、传染途径
参考答案:D
下列哪种情况不是交互支抗().
A.关闭上中切牙间隙,左右上中切牙近中移动
B.Ⅱ类牵引
C.Ⅲ类牵引
D.上下颌第一磨牙正锁,跨颌牵引
E.上颌第一磨牙拉尖牙向远中
Which of the following statements is true of John Maynard Keynes a. He liked to attend beauty contests. b. He would keep on buying and selling hot stocks. c. He often bought in stocks of lesser companies. d. He preferred investing stocks to trading stocks.