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【单选题】
脊髓灰质前角属于 ( )A.
联络神经元
B.
运动神经元
C.
交感神经元
D.
感觉神经元
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【单选题】It is so ___ today that we were almost ____.
A.
freezing…frozen
B.
frozening..freezing
C.
frozen..freezing
D.
freezing..frozen
【简答题】阅读理解。 It was about 11:15 pm on the passenger ship California. The night was freezing cold and the water was filled with ice from the North Pole, it difficult for the ship to sail on. In the rad...
【简答题】《 》记载春秋时期的史事,以记言为主。
【简答题】春秋战国时期以记言为主的史著有: 《尚书》、 《国语》 和
【简答题】春秋战国时代的历史散文大致沿记事与记言两个方向发展。《尚书》中的记言成分，后来发展为以记言为主的《（）》；侧重记事的《春秋》则发展成为以记事为主的《左传》；而将记言与记事趋向结合发展成为《（）》。
【单选题】Warmblooded animals live an active life even in freezing winter，which helps them to ________ their normal body temperature.
A.
keep up
B.
build up
C.
bring up
D.
pick up
【单选题】How is food for plants made? Food for plants is made______
A.
from water
B.
from the air in the sky
C.
from the soil
D.
from water, things in the soil and air, sunlight
【单选题】T he rates of food tissues freezing are __ _ __ those of food tissues thawing at the same temperature difference but changing reversibly .
A.
higher than
B.
lower than
C.
equal to
D.
any type of the above
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