倾斜巷道搬运信号工与搬运工人一起进行搬运作业完毕后,可以安排搬运工人代发信号。
参考答案:错
目前外送硫酸的浓度质量要求为()
A、≥93%
B、≥95%
C、≥97%
D、≥98%
The people living in these apartments have free ______ to that swimming pool.
A. excess B. access C. excursion D. recreation