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【单选题】
辅助生产费用是企业()和期间费用的重要组成部分。A.
制造成本
B.
销售成本
C.
人工成本
D.
基本生产成本
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举一反三
【单选题】在主线程中启动一个子线程执行reading函数。import threadingimport timeimport randomdef reading(): for i in range(10): print("reading",i) time.sleep(random.randint(1,2))_______________________________r.setDaemon(F...
A.
r=threading.Thread(reading)
B.
r=threading.Thread(target=reading())
C.
r=threading.Thread(target=reading)
D.
r=Thread(target=reading)
【单选题】启动一个前台线程import threadingimport timeimport randomdef reading(): for i in range(5): print("reading",i) time.sleep(random.randint(1,2))r=threading.Thread(target=reading)__________________r.start()...
A.
r.setDaemon(True)
B.
r.setDaemon(true)
C.
r.setDaemon(False)
D.
r.setDaemon(false)
【判断题】import threadingimport timelock=threading._RLock()words=["a","b","d","b","p","m","e","f","b"]def increase(): global words for count in range(5): lock.acquire() print("A acquired") for i in ...
A.
正确
B.
错误
【判断题】import threadingimport timeimport randomdef reading(): for i in range(5): print("reading",i) time.sleep(random.randint(1,2))t=threading.Thread(target=reading)t.setDaemon(False)t.start()t.join()...
A.
正确
B.
错误
【单选题】Most American newspapers try to entertain their readers because______.
A.
they have to keep up a good relation with them
B.
they have to compete with television
C.
they have to write about crime，sex and rumor
D.
they have to give factual news in an interesting way
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