精神分裂症的情感障碍主要表现为情绪低落。 ( )
参考答案:错
He didn't tell me _______. [ ]
A. where he bought the new computer
B. where did he buy the new computer
C. where he buys the new computer
D. where does he buy the new computer
一种理想的采集精液方法应具备哪四个条件?