下列选项中,属于确定石油沥青主要技术性质所用的指标的是( )。
A.针入度
B.延伸度
C.大气稳定性
D.溶解度
E.软化点
参考答案:A,B,D,E
— Who is the man in front of our classroom? Is it Mr. Zhang?
— No, it ______ be him. He is much taller. [ ]
A. mustn't
B. may not
C. can't
D. needn't
阴亏血少,心火偏旺的失眠多梦,心悸怔忡。宜选用的方剂是()
A.酸枣仁汤
B.天王补心丹
C.朱砂安神丸
D.甘麦大枣汤
E.磁朱丸