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【判断题】
创伤后应激障碍是指遭受强烈的威胁性、灾难性心理创伤,导致延迟出现和长期持续性的精神障碍,以创伤性体验的反复出现、持续性的警觉性增高、持续性的回避为特征性临床表现,多与应激事件及个体易感性有关。A.
正确
B.
错误
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【单选题】It ______ Mi Green an hour to fix up his bicycle yesterday. [ ]
A.
cost
B.
paid
C.
spent
D.
took
【单选题】How much would it have cost Ms. Rhodes to fix the leak during business hours?
A.
$150
B.
$200
C.
$400
D.
$600
【简答题】测定半导体二极管的伏安特性 将图 1-2 中的 R1 换成二极管,先测二极管的正向特性,正向压降可在 0 ~ 0.75V 之间取值。特别是在曲线的弯曲部分( 0.5 ~ 0.75 之间)适当的多取几个测量点,其正向电流不得超过 25mA ,所测数据记入表 1-2 中。 表 1-2 二极管正向特性实验 U(v) 0 0.4 0.5 0.55 0.6 0.65 0.68 0.70 0.72 0.75 ...
【单选题】Fixing a problem will often cost money; to minimize these costs it is best to find and fix the problem _______.
A.
just before shipping our product to the customer
B.
immediately after we complete the last operation
C.
during the design phase
D.
just before we begin the first production operation
E.
regardless of when you fix the problem, costs are about the same
【简答题】John is called Mr．Fix．It is because there is almost nothing that he cannot fix．
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