皮肤色泽变黑很少见于（）
A.血色病
B.Addison病
C.肝硬化
D.嗜铬细胞瘤
E.重症Cushing病
参考答案：D
选择合适的单词写在横线上。
1. Let's go ______________ (to shop, shopping).
2. I ______________ (don't, aren't) want to buy silk.
3. I want to buy a ______________ (bicycle, dress). Let's go to the clothes shop.
4. ______________ (What, Where) are you going?
5. I want to buy Harry Potter in the ______________ (book shop, clothes shop).
会计电算化系统中的核心子系统是( )子系统。
A．账务处理 B．存货C．报表处理 D．工资
