维生素B12100ug相当于（）。
A.0.01g
B.0.1ng
C.0.1g
D.10mg
E.0.1mg
参考答案：E
() at my classmates' faces, I read the same excitement in their eyes.
A. Looking
B. Look
C. To look
D. Looked
设计过程包括哪些程序？
