皮皮学，免费搜题
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搜题
【单选题】
消化性溃疡特征性的主要表现是A.
反酸、暖气
B.
恶心、呕吐
C.
消瘦
D.
贫血
E.
周期性、规律性上腹痛
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】x、y和z被定义为int型变量，若从键盘给x、y和z输入数据，正确的输入语句是 ( )
A.
INPUTx、y，z；
B.
scan{('%d%d%d'，& x &y &z)；
C.
scanf('%d%d%d'，x，y，z)；
D.
read('%d%d%d'，&x&y&z)；
【判断题】If a first complaint letter does not bring action, we should assume a much stronger one with threat of legal action.
A.
正确
B.
错误
【判断题】If there is a complaint from passengers, flight attendants should first say sorry and then deal with it.
A.
正确
B.
错误
【单选题】When I (got to) the cinema, the film (had already started) I (ought to get) there (earlier).
A.
got to
B.
had already started
C.
ought to get
D.
earlier
【单选题】When I (got to) the cinema, the film (had already started); I (ought to) get there (earlier).
A.
got to
B.
had already started
C.
ought to
D.
earlier
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