一岁患儿，因腹泻伴呕吐2天入院，初步诊断为婴儿腹泻伴脱水。

该患儿此时应做的主要辅助检查为（）。

A.血常规

B.尿常规

C.血生化

D.大便常规

E.大便细菌培养

The problem is my weight. I’m just 1.57 meters high, but 61. ______
my weight is 75 kilos. Many students often make a fun 62. ______
of me. Some boys were unfriendly for me—they call63. ______
me "meat ball". That makes me to feel unhappy. 64. ______
Although I’m a bit too fat, yet I feel very well. I65. ______
enjoy my meal. I love eating meat very much. And I like 66. ______
sweet food, though. I often have sugar with tea, milk. In 67. ______
the past two months I had put on 5 kilos. So I’m becoming 68. ______
more and more worried this problem, but I don’t 69. ______
know to lose weight quickly. Could you help me, dear doctor 70. ______