SECTION 1
Directions: Each sentence below has one or two blanks, each blank indicating that something has been omitted. Beneath the sentence are five lettered or sets of words. Choose the word or set of words for each blank that best fits the meaning of the sentence as a whole.
The primary impulse of each human being is to______himself, but the secondary impulse is to venture out of the self, to correct its provincialism and heal its loneliness.
A.sully
B.actualize
C.reject
D.declare
E.withdraw
第2题
环境,可通过生物富集作用作用于人体。
A.微生物
B.昆虫污染
C.化学农药污染
D.食品添加剂污染
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