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【单选题】
患者,张某,男,5岁。父母反映患儿目前还不会说话,偶尔会冒出几个词来,偶尔尖叫,父母不能理解患儿想表达什么意思。与患儿说话,患儿常常不回答,与父母无目光交流。老师反映患儿在幼儿园里喜欢一个人玩耍,从不同其他小朋友言语交流,喜欢旋转的东西,如车轮、钟表指针等。对该类患儿当前最有效、最主要的治疗方法是A.
教育和训练
B.
行为治疗
C.
药物治疗
D.
药物治疗为主，心理治疗为辅
E.
精神分析
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举一反三
【单选题】The bald eagle ______ into the air and searched its prey with its penetrating eyes.
A.
staggered
B.
soared
C.
whirled
D.
perched
【单选题】听力原文： America's national symbol, the bald eagle, almost went extinct 20 years ago. But it has made a comeback. In fact, the U. S. Fish and Wildlife Service is considering the possibility of taking it ...
A.
It limited their supply of food.
B.
It made their eggshells to fragile.
C.
It destroyed many of their nests.
D.
It killed man baby bald eagles.
【单选题】According to the speaker, what is the possible danger facing bald eagle?
A.
Pollution of the environment.
B.
Over-killing by hunters.
C.
Destruction of their natural homes.
D.
A new generation of pest killers.
【单选题】在家兔动脉血压实验中,夹闭一侧颈总动脉引起全身动脉血压升高,其主要原因是
A.
血管容积减少，相对血容量增多
B.
颈动脉窦受到牵拉刺激
C.
颈动脉窦压力降低
D.
颈动脉体受到牵拉刺激
E.
颈动脉体压力降低
【单选题】The future ______ of the bald eagle is still an important American ecological concern.
A.
birth
B.
evolution
C.
migration
D.
survival
【单选题】在家免动脉血压实验中，央闭一侧颈总动脉引起全身动脉血压升高，其主要原因是
A.
血管容积减少，相对血容量增多
B.
颈动脉窦受到牵拉刺激
C.
颈动脉体受到牵拉刺激
D.
颈动脉窦压力降低
E.
颈动脉体压力降低
【单选题】The bald eagle_____ the United States.
A.
relates
B.
takes the place of
C.
represents
D.
stand for
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