水泵就位后的找正包括()找正、()找正和标高找正。
参考答案:中心线;水平
In order to earn money for his family, it is necessary for him to get a job.
A.it is necessary to get a job
B.it is necessary to find a job
C.he must get a job
D.a job must be found
甲乙丙三国订有贸易条约。后甲乙两国又达成了新的贸易条约,其中许多规定与三国前述条约有冲突。新约中规定,旧约被新约取代。甲乙两国均为《维也纳条约法公约》的缔约国。根据条约法,下列判断哪一项是错误的( )
A.旧约尚未失效
B.新约不能完全取代旧约
C.新约须经丙国承认方能生效
D.丙国与甲乙两国间适用旧约