2 单选Following water, which free of organic matter, can be used to prepare concrete.
A、ASaltwater;
B、BDirtywater;
C、CCleanwater;
D、DMuddywater
发布时间:2025-10-07 08:41:48
A、ASaltwater;
B、BDirtywater;
C、CCleanwater;
D、DMuddywater