人工流产不包括：
A．过期流产
B．药物性流产
C．器械性流产
D．天花粉引产
E．剖宫取胎
参考答案：A
—Excuse me. I want to buy some stamps. Where can I find a post office?
—I know _______ is not far from here. You can easily find _______.
A．that; it
B．it; one
C．one; it
D．that; one
CaCO3是菱镁矿石。（）
