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【单选题】
具完全消化道的动物是（ ）A.
线虫
B.
涡虫
C.
海绵
D.
水螅
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举一反三
【单选题】From the passage we can conclude that the US has come to realize ______.
A.
the weakening of the US dollar can result in trade deficits
B.
the lower the retail prices, the greater the profits
C.
tourism can make great contributions to its economy
D.
visitors to the US are the wealthiest in the world
【单选题】Many lifestyle patterns do such _____ great harm to health that they actually speed up _____ weakening of the human body. [ ]
A.
a; /
B.
/; the
C.
a; the
D.
/; /
【简答题】网页中常见的图片格式有jpg格式,( )格式和( )格式。验
【简答题】简述普多夫金对蒙太奇的分类。
【单选题】These networks are _______for warning signs that show the weakening of rock layers that can precede an earthquake.
A.
in alert
B.
for the alert
C.
with the alert
D.
on the alert
【单选题】The awarding of lands as _________ to the nobleman led to the weakening of the central government.
A.
domains
B.
donations
C.
notations
D.
congratulations
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