能用溴量法测定含量的药物是
A.硫喷妥钠B.苯巴比妥C.四环素D.青霉素钠E.司可巴比妥钠
参考答案:E
John is ______ one of the best shop assistants who ______ in this department store.[ ]
A. thought of; work
B. thought; works
C. considered; work
D. considered as; works