用于剧烈干咳伴胸痛
A．喷托维林(咳必清，维静宁) B．可待因 C．氯哌斯丁(咳平) D．乙酰半胱氨酸 E．溴己新
参考答案：B
机械操作工人的工资包括在建筑安装工程( )之中。
A．机械费
B．其他直接费
C．人工费
D．现场经费
Skipping breakfast can also cause you to overeat. To make matters worse, ________your body is
in a slow state, it won't be able to burn the extra calories very efficiently. [ ]
A. unless
B. though
C. since
D. before
