钢筋连接试验主要有钢筋焊接接头和钢筋机械连接。( )
参考答案：对
— ________
— I'd like to buy a birthday gift for my only daughter. [ ]
A. Why do you come?
B. How can I help you?
C. What would you like to buy?
D. Nice to meet you!
ADH释放的有效刺激主要是（）
A.血浆晶体渗透压降低
B.血浆晶体渗透压升高
C.血浆胶体渗透压升高
D.血浆胶体渗透压降低
E.循环血量增加
