压力容器必须严格按有关规定进行作业和贮存,作业人员必须持证操作,无压设备、设施严禁()运行。
A.长时间
B.在太阳下
C.有压
参考答案:C
缺词填空,根据首字母填空. (每空一词 ) (10分)
A mother and her s___小题1:___ get into a bus in a small city and s小题2: down. The bus conductor(售票员) came to them for them m小题3: . The mother says, “I w小题4: one ticket to the zoo.” And gives him one yuan. The conductor l 小题5: at the small boy for a while and then says to him, “How o小题6: are you, young man?” The mother begins to speak, but the conductor stops h 小题7: . The boy says, “I am seven at home, and four in the b小题8: .” At last, the mother h __小题9:___ to take fifty fen out of her pocket and g__小题10:___ it to the conductor.
计算并验算下面各题.
6.12-3.58 126×37.