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【单选题】
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
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举一反三
【简答题】牙龈的边缘称为（ ），呈波浪状，其突入牙间部分称为（ ）。
【单选题】某一生产者的一些经销商指控同一城市其他经销商在价格、服务等方面竞争激烈,导致这些经销商的生意清淡,这属于( ) 。
A.
纵向渠道冲突
B.
纵向渠道竞争
C.
横向渠道竞争
D.
横向渠道冲突
【简答题】牙龈的边缘称为 ____ ,呈现波浪状,其突入牙间部分称为 ________ 。