可控硅的伏安特性即电压—电流特性。()
参考答案:对
—I really think he is an excellent actor.
—I agree with you _______.
A.in a way
B.on the way
C.by the way
D.in the way
将光标确定在需删除字符的(),单击键盘上“De1ete”健,即可删除光标所在()的字符。
A.上方,下方
B.左侧,右侧
C.右侧,左侧
D.下方,上方