11个月男孩,体重10kg,患腹泻伴中度脱水,该患儿液体丢失量约为()
A.200ml
B.1500ml
C.800ml
D.400ml
E.1200ml
参考答案:C
—What a traffic jam! I'm going to be late again.
—Yes. The traffic now is _____ than it used to be.[ ]
A. even better
B. a bit good
C. even worse
D. a bit bad
用经校验的万分之一的分析天平称取0、1克式样,其相对误差为( )
A.士0.1%
B.+0.1%
C.-0.1%
D.无法确定