________ exposure to dirty air can cause people suffer from some diseases. A) Rais
________ exposure to dirty air can cause people suffer from some diseases.
A) Raised
B) Prolonged
C) Expanded
D) Enlarged
________ exposure to dirty air can cause people suffer from some diseases.
A) Raised
B) Prolonged
C) Expanded
D) Enlarged
第2题
A.priority
B.process
C.perseverance
D.performance
第4题
The employee health study on PFOA conducted by DuPont revealed______.
A.a certain degree of relation between exposure to PFOA and health
B.possible damage done by PFOA exposure to health
C.close ties between exposure to PFOA and health
D.most of the health parameters are unaffected by PFOA exposure
第5题
We know from the passage that ________.
A) exposure to even tiny amounts of radiation is fatal
B) the effect of exposure to radiation is slow in coming
C) radiation is avoidable in space exploration
D) astronauts in spacesuits needn’t worry about radiation damage
第7题
第8题
Too much exposure to TV programs will__________ (大大地损坏孩子们的视力).
第9题
The precious manuscripts were hopelessly______ by long exposure in the cold, damp cellar.
A.damaged
B.injured
C.ruined
D.spoilt