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【单选题】
糖脂普遍存在于细胞膜上,不同的细胞中糖脂的种类不同,下面是人红细胞表面的ABO血型糖脂的结构示意图,据图判断下列有关叙述错误的是( )A.
糖脂是由糖类和脂质分子结合而成的
B.
红细胞ABO血型的不同在于组成糖脂中的糖的种类和排列顺序
C.
糖脂和糖蛋白都具有识别作用
D.
糖脂位于细胞膜内表面
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举一反三
【单选题】Daniel has ________ CDs than Amy, but ________ DVDs than Paul. [ ]
A.
more; less
B.
more; fewer
C.
less; more
D.
fewer; less
【单选题】Which of the following assumptions about vocabulary is NOT true?
A.
A vocabulary item can be more than one word.
B.
Both teachers and students need to know that there is a difference between active and passive vocabulary.
C.
Words can be taught and learned most effectively in groups of words that are related to each other.
D.
The best way to explain vocabulary is to translate .
【单选题】With the fight against piracy ________, more and more people find that authentic CDs and DVDs deserve ________.
A.
furthered; buying
B.
furthered; to buy
C.
furthering; to be bought
D.
furthering; buying
【单选题】What does the author compare grammar and vocabulary to?
A.
He compares grammar to a well-conditioned car and vocabulary to a road map.
B.
He compares grammar to a tall tree and vocabulary to beautiful flowers.
C.
He compares grammar to a road map and vocabulary to a well-conditioned car .
D.
He compares grammar to beautiful flowers and vocabulary to a tall tree.
【简答题】What poses the biggest threat to the data stored on CDs and DVDs?
【简答题】In the ______ Method, vocabulary selection procedures are followed to ensure that an essential general service vocabulary is covered.
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