嗜铬细胞瘤患者查24h尿儿茶酚胺及代谢产物,收集尿液前最好停用所有药物,包括降压药。
参考答案:对
下列各项对诊断伤寒最有意义的是()
A.稽留热
B.血细菌培养阳性
C.脾肿大
D.肝肿大
E.相对缓脉
Why does the speaker think some students don’ t like history
A.History teachers don’t care.
B.Students are too lazy.
C.The professors don’ t make it interesting.
D.Students think history is not important.