【判断题】曲柄摇杆机构存在死点条件,一是摇杆为主动件,二是曲柄与连杆共线。
【判断题】耐力运动膳食脂肪应略低于其他项目,可占总能量 20 ~ 25% 。
【单选题】为什么古建筑正堂左边摆花瓶、右边摆坐屏,有何说法?
【单选题】听力原文: Before World War II, we spent our summer holidays in Hungary. I have only the dim memory of the house we lived in, of my room and my toys. Nor do I recall clearly the large family of grandparent...
A.
Because the family was extremely large.
B.
Because he didn't live very long with them.
C.
Because he was too young when he lived with them.
D.
Because he was fully occupied with observing nature.
【单选题】在 bootstrap中,以下的()不是文本对其的方式。
【简答题】四大天然纤维——( )、( )、( )、( )
【多选题】以下哪些表现属于抑郁症患者()
D.
常有自杀念头,甚至有自杀的行动,觉得活着还不如死了的好