下列哪种产后病与血瘀无关：
A．产后腹痛
B．产后痉证
C．产后发热
D．产后恶露不绝
E．产后恶露不下
参考答案：B
单项式-xymzn和5a4bn都是5次单项式，那么m=（ ），n=（ ）。
As it was his first time to visit the science museum, the boy seemed ___about everything there. [ ]
A. anxious
B. curious
C. particular
D. frightened
