The primary concern in aiding a back injury patient is（）.
1、A: I don't have tea in the morning. B
A: I dont have tea in the morning. B:（）AI don’t, too.BNot ICNeither do I.
2、I think a new era in the relationships
I think a new era in the relationships between our two countries has _______.A set aboutB set outC set upD set in
3、After fitting back in place the gear w
After fitting back in place the gear wheels, don’t forget to （） them.AfulfillBeliminateCgreaseDbend
4、In a diesel engine, when the fuel is i
In a diesel engine, when the fuel is injected into the cylinder,（）Athe piston is just coming upward from the bottom dead centerBthe piston h...
5、Any increase in the exhaust back press
Any increase in the exhaust back pressure of a four-stroke/cycle diesel engine will （）.Areduce engine horsepower outputBaid in silencing the exhaust noiseCincrease the mean effective pressureDcontribute to effective cylinder scavenging
6、A cast steel strong back is fitted in
A cast steel strong back is fitted in way of the combustion space to help absorb （）.Aflame temperatureBfuel oilCair movementDgas force