If you came into contact with nitrobenzene while disconnecting the cargo hose,you should be aware that it is().
- Ahighly toxic when absorbed through the skin
- Ba blood poison
- Ca nerve poison
- DAll of the above
If you came into contact with nitrobenzene while disconnecting the cargo hose,you should be aware that it is().
1、3. When I came into the room,he preten
3. When I came into the room,he pretended ________ his homework.A to doB be doingC doingD to be doing
2、As for turbine oil, contact with water
As for turbine oil, contact with water in the form of steam will be inevitable so good () properties will be essential.AdefrostingBde-oilingCdemulsifyingDdehumidifying
3、Sorry,I can’t go with you tomorrow.If
Sorry,I can’t go with you tomorrow.If I should go I__________him.Ashall seeBwill seeChad seenDwould see
4、When the air charge contacts with the
When the air charge contacts with the cylinders and pistons and mixes with the residual gases, it will()Aincrease in temperatureBlose its energy partlyCexpand and do workDbegin to be compressed
5、New secretaries came and went with mo
New secretaries came and went with monotonous regularity.AamazingBdepressingCpredictableDdull
6、The teacher came into the room, with h
The teacher came into the room, with his hands _______behind his back.A being crossedB having crossedC crossedD to be crossed