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搜题
【单选题】
人们感受到威胁或预期要发生不良后果时产生的情绪体验,是临床病人最常见的情绪反应,这是A.
焦虑
B.
抑郁
C.
敌对
D.
自卑
E.
愤怒
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皮皮学刷刷变学霸
举一反三
【单选题】To meet the challenge of reforming the education system, we need to take measures to train teachers and adopt better teaching methods.
A.
Y
B.
N
C.
NG
【简答题】We need the ______ of a marathon runner to meet our goals during the next decade.
【单选题】Everything we eat and drink contains some salt we can meet the body's need for it from natural sources without turning ______ the salt bottle.
A.
up
B.
to
C.
on
D.
over
【简答题】超精密加工的难点是什么？超精密切削对刀具性能有哪些要求？为什么单晶金刚石被公认为理想的超精密切削刀具材料？
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