— Can you go by ship _____________ by train?
— I can go by train. [ ]
A. and
B. by
C. or
答案:C
引起小儿腹痛常见的原因有()
A.感受外邪
B.乳食积滞
C.虫积
D.肝气郁结
E.脾胃虚寒
正常情况下,人的卵细胞的受精位置是 [ ]
A.子宫
B.卵巢
C.盆腔
D.输卵管