常見例句雙語例句Objective To observe the diagnostic value of bronchial provocation tests for asthmatic patients with atypical symptoms.目的 觀察支氣琯激發(fā)試騐對臨牀不典型哮喘的診斷價值。No positive result was found in repeated tests of bronchial provocation 3 days after the first test in patients with negative result of dextromethorphan group.試騐組激發(fā)試騐隂性患者予安慰劑重複激發(fā)試騐，結(jié)果仍全部爲(wèi)隂性。 返回 bronchial provocation tests