下列属于第二代头孢菌素的抗生素是()。
A.头孢哌酮
B.噻甲酸肟头孢菌素
C.头孢呋辛
D.头孢噻肟
E.头孢唑林
参考答案:C
—What was the weather like when you were on holiday?
—Fine.It__________sunny every day until Wednesday.
A.is
B.was
C.will be
D.would be
检查输送机大链松紧是否适当,有无拧麻花现象链环和连接环有无损坏刮板有无损坏和短缺,不得出现连缺()个刮板的现象。
A.一
B.二
C.三
D.四