诊断抑郁神经症，病程至少持续（）。
A．2年
B．3个月
C．2周
D．6个月
参考答案：A
We give dogs time, space and love we can spare, and _____, dogs give us their all. [ ]
A. in all
B. in fact
C. in short
D. in return
测温元件的安装有哪些要求？
