妊娠期乳痈称()
A.妊娠乳痈
B.粉刺性乳痈
C.内吹乳痈
D.外吹乳痈
E.不乳儿乳痈
参考答案:C
Tom usually goes to school _____ foot, but Jim goes to school _____ bus. [ ]
A. on; by
B. in; on
C. by; in
D. on; on
属于多元酚类化合物的是
A.鞣质
B.多糖
C.蛋白质
D.有机酸
E.昆虫变态激素