【多选题】What are the idioms from The Trojan War in Greek mythology?
【单选题】下列哪项不是穿脱隔离衣的适应症:
A.
常见的呼吸道疾病有流行性感冒、流行性腮腺炎等
【简答题】在IR光谱中,为什么有时基频峰数目小于振动自由度数?产生红外吸收的两个必要条件是什么?
【单选题】A person who is waiting for the return to work belongs to ______
D.
those who have lost confidence.
【简答题】n. an old person, especially somebody who has retired from work