半开放式麻醉系统要求调节氧流量,使CO2重复吸收浓度不超过()
A.0.1%
B.0.2%
C.0.3%
D.0.5%
E.0.6%
参考答案:E
确保装卸搬运作业的安全和作业人员的人身安全,严格机械设备的检修制度,作业环境应留用安全作业空间等,它属于装卸搬运作业合理化原则中的()。
A.省力化原则
B.连续化原则
C.人性化原则
D.集装单元化原则
句型转换(10分,每题2分)
小题1:Running is safer than skiing.(改为同义句)
Skiing is__________________than running.
小题2:There are 10,000people in the city.(改为同义句)。
The city has___________________10,000.
小题3:People will work three days a week.(对划线部分提问)
_____________________people work?
小题4:there , be, school , will , in , computers(连成句子)
__________________________________________________?
小题5:They are going to meet outside the school gate.(改为一般疑问句)
____________________________________________________________?