出现下列哪项表现,应警惕新生儿持续肺动脉高压(PPHN)()
A.吸入高浓度氧,发绀不缓解
B.胸廓饱满,肋间隙增宽
C.肺部广泛湿啰音
D.惊厥
E.双侧呼吸音不对称
参考答案:A
阅读短文,用动词的适当形式填空。
My name is Tony. I 1 (have) a big family. There are many people in my family. They 2
(be)my grandfather, my grandmother, my parents, my sister and I. I haven't got any brothers. I 3
(study) in a school in Beijing. It's very big. There are many students in our school. In front of(在……的前面 )our classroom there is a blackboard. We can 4 (write) on it. There are forty desks and chairs
in our classroom. Miss Li is our teacher.There is a computer on Miss Li's desk. But there 5 (be not)
any computers on our desks.I love my family. And I love my school and teachers.
维生素D缺乏性手足搐搦症的直接原因是()
A.维生素D缺乏
B.血磷明显降低
C.碱性磷酸酶增高
D.血清离子钙降低
E.钙磷乘积降低