实用流量公式主要针对各种气体推导出的,故不适用于液体流量计算。
参考答案:错
-He got his first book published.It turned out to be a bestseller.
-When was____?
- _____was in 2000 when he was still in college. [ ]
A.that;This
B.this;It
C.it;This
D.that;It
以下各项中,应怀疑为绞窄性肠梗阻的临床表现是()
A.明显的全身情况
B.腹膜炎体征明显
C.腹部不对称
D.腹痛为阵发性、持续性加剧
E.以上都是