珠江三角洲成为我国对外开放的前沿。下列因素中,最重要的是[ ]
A、廉价的劳动力资源丰富
B、有对外开放的历史传统
C、农业基础好
D、地处广东省东南沿海,毗邻港澳
答案:D
This is the very thing _ _ belongs .
A. which; him
B. that; him
C. which; to his
D. that; to him
在奇经八脉中,司眼睑开合的是
A.阴维脉
B.阳维脉
C.冲脉
D.阴跷脉
E.阳跷脉