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【单选题】
A bipolar transistor h as how many pn junc ti ons?A.
1
B.
2
C.
3
D.
4
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【单选题】He was asked to show them the same respect__________they would to him．
A.
like
B.
which
C.
as
D.
when
【简答题】When asked ______they needed most, the kids said they wanted to feel important and loved. A．what B．why C．whom D．which
【单选题】The Frenchman pointed to the spoon and asked me _________ to call that in Chinese.
A.
whether
B.
how
C.
which
D.
what
【单选题】下列关于心绞痛的说法中错误的是
A.
心绞痛属于内脏绞痛，与肌肉收缩痉挛相关
B.
心绞痛是冠心病的常见症状
C.
心绞痛时心肌出现短暂急剧的缺血缺氧
D.
心绞痛患者发作时，会出现明显的胸骨后压榨性疼痛
E.
冠脉痉挛也是心绞痛的一种重要表现
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