下列哪个洲既位于北半球又位于西半球[ ]
A．欧洲
B．亚洲
C．北美洲
D．大洋洲
答案：C
As he works in a remote area, he visits his parents only _____.[ ]
A. apparently
B. occasionally
C. practically
D. abruptly
禁食12h后，正常人血浆三酰甘油主要存在于（）
A.CM
B.LDL
C.HDL3
D.VLDL
E.HDL2
