足太阴脾经与手少阴心经交接于：（）
A.目内眦
B.目外眦
C.心中
D.胸中
E.肺中
参考答案：C
While he was investigating ways to improve the telescope Newton made _______discovery which completely changed ____ man’s understanding of color.
a ,/ B. a ,the C. /, the D. the ,a
乙烯和异丁烷可用同一套精制床R5002用于脱除（）。
A.水
B.乙烷
C.氧气
D.TEAL
