ZX7—400属()电焊机。
A、交流
B、硅整流
C、逆变式
D、晶闸管式整流
参考答案:C
久病、重病患者,原来不欲言语,语声低微,时断时续,突然转为言语不休的是()。
A.得神
B.神乱
C.少神
D.失神
E.假神
If an increase in aggregate demand is greater than expected, actual inflation is:()
A. greater than expected inflation and unemployment increases.
B. less than expected inflation and unemployment decreases.
C. greater than expected inflation and unemployment decreases.