乳糜微粒、中间密度脂蛋白 (IDL)、低密度脂蛋白 (LDL )和极低密度脂蛋白 (VLDL )都是血 清脂蛋白,这些颗粒按密度从低到高排列,正确的次序是()
A. LDL、IDL、VLDL、乳糜微粒
B. 乳糜微粒、VLDL、IDL、LDL
C. VLDL、IDL、LDL、乳糜微粒
D. 乳糜微粒、VLDL、LDL、IDL
E. LDL、VLDL,IDL,乳糜微粒
Listen to five short conversations and choosethe best answer to each question you hear.[音频]
A. He was taking care of someone.
B. He had panned to do something else.
C. He was expecting someone to call him.
D. He had to handle something unexpected.
[音频]
A. Performing in the play Hamlet.
B. Writing a term paper on Hamlet.
C. Making a presentation on Hamlet.
Discussing Hamlet with her professor.
[音频]
A. He doesn't want to learn to play music.
B. He doesn't have time to listen to music.
C. He doesn't know how to appreciate music.
D. He doesn't know which type of music he likes.
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