【名词&注释】
胆固醇(cholesterol)、胆色素(bile pigment)、碳酸氢盐(bicarbonate)
[多选题]通过内囊后肢的纤维束有( )
A. 皮质核束
B. 皮质脊髓束
C. 脊髓丘脑束
D. 听辐射
E. 视辐射
查看答案&解析
举一反三：
[单选题]Passage ThreeMany theories about the origin of the ocean have been proposed by scientists. The most widely accepted one is that the earth at some time in its very early history became hot enough to melt the materials from which it was formed. While in this molten state, lighter rock-forming materials (造岩材料) floated on the surface of the heavier ones. Then, between four and a half four billion (十亿) years ago, the molten earth cooled sufficiently to form. a crust of rock that was many miles thick.
A. Surrounding the earth was an unbroken canopy of clouds miles thick and made up mostly of water vapor. Rain falling toward the still-hot earth was heated to steam and rose to the clouds again. After many millions of years, as the earth continued to cool, its surface temperature fell below the boiling point of water. Rainwater could now remain on the earth, covering its whole surface except for the higher places on earth that had been formed from the lighter rock materials.
B. In 1970, scientists had pieced together evidence that the lighter rock materials had formed one huge continent by a vast ocean. Then, about 200 million years ago, the great continent began to break up, the pieces moving slowly apart.
C. The onrushing waters of the single huge ocean now entered and filled the spaces between the separating continents--and became the several oceans and seas we know today.
D. 41. This passage mainly talks about ______.
E. the origin of the earth
F. the origin of the ocean
G. the history of the earth
H. the forming of the earth's crust
[单选题]
A. toldB． gold
B. hold
C. folk
[单选题]胆汁中参与脂肪消化和吸收作用的成分是( )
A. 碳酸氢盐
B. 胆盐
C. 胆固醇
D. 胆色素
E. 磷脂酰胆碱
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