尿毒症症状加重最常见的诱因是
A．心衰
B．感染
C．脱水
D．肾毒性药物
E．高蛋白饮食
参考答案：B
--- Who should I send this message to ?
--- The mayor is the one ____ ?
A．to send it
B．to be sent
C．for sending
D．to send it to
We haven’t seen each other for many months.＿＿!
A．What I missed you
B．What did I miss you
C．How I missed you
D．How did I miss you
