A.5%,0.1mol/L; B.10%,0.1mol/L; C.5%,0.01mol/L; D.10%,0.01mol/L。
A.零點旋鈕 B.定位校正旋鈕 C.濕度補嘗旋鈕 D.玻璃電極的高度
A.0.01; B.0.1; C.0.001; D.1.0。