S3.(Lines 5-6, Para. 2, Passage 3)
What easier way is there for a nurse, a policeman, a barber, or a waiter to lose professional identity (身份) than to step out of uniform?
第2题
(Passage 2, Lines 1-2, Para. 5)
Scientists have reason to think that a man can put up with far more radiation than 0.1 rem without being damaged;
第4题
lanted into an 2 soil.
第8题
fter long or 4 periods of exposure.
第9题
ir pollution.
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