判断溶血性贫血病因的实验室检查有()
A.Hamˉs试验
B.高铁血红蛋白还原试验
C.血红蛋白电泳
D.骨髓细胞学检查
E.血浆游离血红蛋白
参考答案:A, B, C
看图,补全句子。
1. Jim has his _____________ on Monday.
2. Jim _____________ on Tuesday.
3. Jim _____________ on Wednesday after school.
4. Jim _____________ on Thursday evening.
5. Jim has his _____________ class on Friday.
6. Jim has no class on _____________ and _____________.
某同学用图所示装置粗略测定空气中氧气的体积分数,烧杯上方玻璃管中部有一可左右移动的活塞,活塞左端密封有空气,活塞右端玻璃管口与空气相通,开始时活塞在刻度5处,向烧杯内加水与生石灰反应放热使白磷燃烧,实验结束后活塞停留在( )
A.6处
B.5处
C.4处
D.1处