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【简答题】
Parents often suffer deep feelings of _______ (guilty) if their children fail to succeed, or don't turn into responsible and law abiding members of society.
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举一反三
【单选题】关于笛卡尔写给雷迪斯的信,不正确的是:()
A.
表明对雷迪斯的看法，为其鸣不平
B.
为自由的学术讨论做辩护
C.
抨击了乌科勒大学校长
D.
为自己爱国情感辩白了很久
【单选题】The responsibilities of the engineer officer in charge of the watch do not include_____.
A.
to ensure the main propulsion plant are kept under constant surveillance
B.
to ensure the auxiliary systems are kept under constant surveillance
C.
to inspect the steering gear spaces at suitable intervals
D.
to inspect and overhaul the equipments in his charge
【单选题】- Did you see a man in black pass by just now? - No, sir. I _______ a newspaper. [ ]
A.
read
B.
was reading
C.
would read
D.
was reading
【单选题】有人设计出利用CH 4 和O 2 的反应，用铂电极在KOH溶液中构成原电池．电池的总反应类似于CH 4 在O 2 中燃烧，则下列说法正确的是（ ） ①每消耗1molCH 4 可以向外电路提供8mole - ②负极上CH 4 失去电子，电极反应式CH 4 +10OH - -8e - =CO 3 2- +7H 2 O ③负极上是O 2 获得电子，电极反应式为 O 2 +2H 2 O+4e - =4O...
A.
①②
B.
①③
C.
①④
D.
③④
【简答题】如图，△ABD中，∠BAD=45°，AE⊥BD于E，DF⊥AB于F，交AE于G，BE=4，DE=3，则AG=______．
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