题目内容

以下程序的输出结果为( )。a=[i for i in range(6)]try: for t in a:if t%4==3: raise else: print(t,end=" ")except: print("end")

A. 0 1 2
B. 0 1 2 end
C. 0 1 2 3 end
D. 0 1 2 3 4

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Which of the following tasks are before-flight duties?

A. I may take part inpre-flight briefings.
B. I mustdemonstrate how to use emergency equipment.
C. I must performpre-flight checks.
D. I need to greetpassengers as they board.
E. I need to direct passengers to their seats.
F. I may sellduty-free items.

Which of the following tasks are on-flight duties?

A. I need to greetpassengers as they board.
B. I must demonstratehow to use emergency equipment.
C. I must ensurethat hand-luggage is securely stowed.
D. I may makeannouncements.
E. I need to servefood and drink.
F. I may sellduty-free items.
G. Ineed to completeflight reports after the journey.

Which of the following tasks are after-flight duties?

A. I must ensurethat hand-luggage is securely stowed.
B. I must make surethat passengers leave the plane safely.
C. I may sellduty-free items.
D. Ineed to completeflight reports after the journey.
E. I need to direct passengers to their seats.

病史采集的主要内容是

A. 主诉
B. 现病史
C. 既往史
D. 过敏史

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