句型转换。

1. She can speak Chinese. (改为一般疑问句)

    __________ Chinese?

2. She is eating an ice cream. (改为否定句)

    She __________ an ice cream.

3. She has supper at home. (改为一般疑问句)

    __________ supper at home?

4. Tom is writing to his friends.  (对画线部分提问)

    Who __________?

5. Please send me a postcard. (改为同义句)

    Please send a postcard __________.

胃癌合并幽门梗阻常发生（）

A.代谢性酸中毒

B.代谢性碱中毒

C.呼吸性酸中毒

D.呼吸性碱中毒

E.高钙血症