如果显示不正确，再做一次测试
A.lf the indication is not correct, do the test again. B.If the indication is not incorrect; you should do the next test. C.Do the test a second time if the indication is correct.正确答案A
如果显示不正确，再做一次测试
A.lf the indication is not correct, do the test again. B.If the indication is not incorrect; you should do the next test. C.Do the test a second time if the indication is correct.正确答案A
