皮皮学，免费搜题
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【单选题】
吸收维生素 B12 所需的内因子来自?A.
主细胞
B.
颈粘液细胞
C.
胃小凹上皮细胞
D.
壁细胞
E.
胃内分泌细胞
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皮皮学刷刷变学霸
举一反三
【单选题】What was Jasper's trouble after he moved in his city house?
A.
His car was broken.
B.
He could not move his car into his garage.
C.
He could not move into his new house.
D.
Some cars moved into his garage.
【简答题】He moved out of his newly-decorated house, because he ____________(对油漆味敏感).
【判断题】电控汽油发动机的控制原理是:以电脑为控制核心,以空气流量和发动机转速为控制基础,以喷油器、点火器和怠速空气调整器为控制对象,保证获得与发动机各种工况相匹配的最佳混合气成分和点火时刻。
A.
正确
B.
错误
【简答题】简答电控发动机对喷油量的控制原理。
【单选题】When he moved to Germany in _____ , he was already in _____ . [ ]
A.
the 50s; his sixty
B.
the 50s; his sixties
C.
50s; his sixties
D.
50s; his sixty
【单选题】He explained that his diet was so strict that he had to ______ himself occasionally.
A.
grant
B.
donate
C.
reward
D.
award
【简答题】As John moved his bicycle out of the driveway, he heard his mo m shout, “Don’t forget to lock it!” He thought to himself that she was such a 36 . Really, what could 37 at that little library in...
【单选题】He moved his glass violently as he spoke and some of the beer still remaining in it______ on to the floor.
A.
overflowed
B.
fell
C.
poured
D.
spilt
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