以下β-内酰胺类抗生素药物的溶液中哪一种加入稀盐酸(pH?5)后不产生白色沉淀()
D
暂无解析
The childhood of Tom Sawyer and Huck Finn in the Mississippi is a record of a vanished way of life in the( )Mississippi valley
The thief took away the woman ’s wallet without ________.
The attitude towards life that( )had been trying to demonstrate in his works is known as “grace under pressure ”.
When ________ to tell the difference between British and American English, the linguist made a long and ________ speech.
Jean Wagner’most s enduring contribution to the study of Afro -American poetry is his insistence that it ________ in a religious, as well as worldly, frame of reference.
Generally, a dictionary covers the following contents EXCEPT ______.
周煦良在 “翻译三论 ”一文中写道:直译可以分为三类,其中不包括()
Unlike his contemporaries in the early 20th century,( )did not break up with the poetic tradition nor made any experiment on form.
The engineer ______ my father works is about 50 years old.
In 1950,( )was awarded the Nobel Prize for the anti-racist Intruder in the Dust.