这台电压表/伏特计如此灵敏,可以测量出电压的微小变化。This is such()sensitive voltmeter that it can measure the slightest changes in voltage.
这台电压表/伏特计如此灵敏,可以测量出电压的微小变化。This is such()sensitive voltmeter that it can measure the slightest changes in voltage.
A.a
B.an
C.the
D./
正确答案:a