(20分)单选题20If it is more than two hours since you mixed the compound, do not use it.
选项:
A: Do not use the compound after mixing it for more than two hours.
B: Since you spend more than two hours to mix the compound , do not use it.
C: You should not use more than two hours to mix the compound.
发布时间:2024-05-23 20:07:12