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【单选题】
在自杀的生物学因素中描述正确的是A.
自杀死亡者的男女性别比与自杀未遂者的男女性别比无明显差异
B.
家系中有自杀者自杀风险较高
C.
我国男女两性的自杀率是1:3
D.
对自杀者死后的脑研究揭示脑前额叶皮质5- HT活动升高
E.
近50年来男性自杀率的上升低于女性
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【单选题】My father gave his old car to me and he is _____ a new car. [ ]
A.
considered buying
B.
considered to buy
C.
considering buying
D.
considering to buy
【简答题】My father told me that he was considered too difficult a student (teach) ______when he was young.
【简答题】A．He has considered getting it. B．He thought it was interesting. C．He bought it already. D．He has finished reading it.
【单选题】如图所示,在半径为R 的无限长圆柱形空间内有一个均匀磁场,在某一时刻磁感应强度随时间的变化率为dB/dt 。在磁场中有 A 、 B 两点,其间可放置直导线 或弧形导线,则下列说法正确的是( )
A.
B.
C.
两导线上均有感生电动势，且两者感生电动势相等。
D.
两导线上均有感生电动势，且直导线上感生电动势小于弧形导线上的电动势。
【单选题】He is quite strange, for everything he does is opposite to ______ is considered normal behavior.
A.
whether
B.
that
C.
what
D.
which
【单选题】He was working in Africa and was considered by the company as the best manager at collecting ______ and money.
A.
ivory
B.
irony
C.
inventory
D.
levy
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