Thanks for _______ me so much help. [ ]
A. give
B. gives
C. to give
D. giving
答案:D
婴儿每日每公斤体重需要热量约为
A.460kJ
B.550kJ
C.350kJ
D.500kJ
E.400kJ
机冷车组应编挂在列车(),在加挂铁路货车时,严禁剧烈冲撞,并禁止进行()。