胎儿窘迫时的病理生理表现以下哪项是错误的()
A.肛门括约肌收缩
B.早期急性缺氧表现为胎心增快
C.肠蠕动亢进
D.酸中毒
E.慢性缺氧可致胎儿生长受限
参考答案:A
随机应变,用所给词的适当形式填空。
l. I want _____ (eat) some chocolate.
2. Look! There are five _____ (wolf) on the mountain.
3. Noodles _____ (be) delicious.
4. Where _____ (do) a snake live?
5. What animal _____ (have) no legs?
呼号的动作要求是什么?