更多"Dirty water must not be ______ with"的相关试题:
[单项选择]The drinking water has became (contaminated) with lead.
A. polluted
B. treated
C. tested
D. corrupted
[单项选择]Boil drinking water for at least five minutes, to kill the {{U}}germs{{/U}}, then let it cool in a clean container. Keep it covered.
A. insects
B. bugs
C. bacteria
D. pests
[单项选择]Drinking water----excessive amounts of fluorides causes the enamel of teeth to become brittle and to chip off, leaving a stained or mottled effect.
A. containing
B. in which containing
C. contains
D. that is contained
[单项选择]Doctors say drinking water will help the pain ______ after the body has the right amounts of water and salt.
A. disappear
B. disappearing
C. disappeared
D. disappears
[单项选择]Drinking water ________ excessive amounts of fluorides may leave a stained or mottled effect on the enamel of teeth.
A. containing
B. in which containing
C. contains
D. that contain
[单项选择]Now it is important that our drinking water ______ purified.
A. should be
B. is
C. will be
D. was
[单项选择]The ______ of seawater into drinking water is a complicated problem.
A. conversion
B. conjecture
C. concession
D. contraction
[单项选择]If the diver is in deep water, he must come to the surface in order to allow his body to ______ to the change in pressure.
A. modify
B. adopt
C. improve
D. adjust
[单项选择]Factories must clean their water before it is thrown away.
[单项选择]We must ______ on water during the dry season.
A. economical
B. economize
C. economy
D. economically
[单项选择]The processes of making drinking glasses by Green Glass are a. the bottle is turned upside down. b. the neck is attached to the base. c. the base is removed from the bottle, d. the glass is heated to strengthen it.
A. a, d, c, b
B. c, a, b, d
C. c, d, b, a
D. a, c, b, d
[单项选择]Please be careful when you are drinking coffee in case you ______ the new carpet.
A. crash
B. pollute
C. spot
D. stain
