【单选题】If friends say that their plans to move to a new home are definite, that means
A.
the plans are not clear yet.
B.
the plans will change.
C.
the plans will not change.
【判断题】分度头手柄摇过应摇的孔数,则手柄退回即可。
【判断题】对于任一反应 , 其反应级数就是其对应在反应式中的计量系数 。
【单选题】— Do you often brush (刷) your _____? — Yes, I do. [ ]
【判断题】分度头手柄摇过应摇的孔数,则手柄退回即可。
【单选题】—Do you often brush (刷) your _____? —Yes, I do. [ ]