黄瘤病临床类型，较罕见的一型是（）。
A.扁平黄瘤
B.睑黄瘤
C.腱黄瘤
D.播散性黄瘤
E.结节性黄瘤
参考答案：D
Read and choose. 读一读，选择正确的答案。
1. What do you see?[ ]
A. I see a circle.
B. I play ball.
2. Where is the park?[ ]
A. It's near my home.
B. Let's go.
3. What do you do on the playground?[ ]
A. I am young.
B. I slide.
4. Who's the girl?[ ]
A. My sister.
B. My grandma.
两台水泵串联运行流量必然相同，总扬程等于两泵扬程之和
