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【判断题】
违反规章制度,是飞行事故的基本致因,是危害飞行安全的罪魁祸首。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】Read the story again and finish the dialogue.(根据read and write课文内容填空) Little Duck: Old Tree, the sun gets 1 but my shadow gets 2 Why? Old Tree: That's easy. Your shadow gets longer because you a...
【单选题】When you think about the time you have, you _________.
A.
feel you never have enough
B.
feel confident you will get everything done within the time you have
C.
sometimes wonder how you will get it all done
D.
0
【简答题】使组合框获得焦点的方法是______________ 。
【简答题】PLC编程软件安装方法不正确的是( )(A)安装前,请确定下载文件大小及文件名 (B)安装过程中,每一步都要杀毒 (C)安装时,最好把其他应用程序关掉,包括杀毒软件 (D)先安装通用环境,解压后,进入相应文件夹,安装。A.B.C.D. D
【单选题】—When do you think it is convenient for you to start? —How about 7:30 at the school gate? —____________. [ ]
A.
It is up to you
B.
Take your time
C.
OK. That's settled
D.
It all depends
【单选题】下列表面活性剂中属于W／O型乳化剂的是( )
A.
Arabic gum
B.
Myrij 45
C.
Span 80
D.
Fween 80
E.
Pluronic F 68
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