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【单选题】
目前局域网上的数据传输速率范围一般在()。A.
9600bps〜56kbps
B.
64kbps〜128kbps
C.
10Mbps 〜1000Mbps
D.
1000Mbps 〜10000Mbps
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反馈参考答案：
举一反三
【单选题】数据流图是用于表示软件模型的一种图示方法，在下列可采用的绘图方法中，( )是常采用的。 ①自顶向下 ②自底向上 ③分层绘制 ④逐步求精
A.
全是
B.
①③④
C.
②③④
D.
①④
【单选题】— Excuse me, can you spare me a few minutes? —Sorry, I haven’t ______ time to talk to you just now. I have to leave early to catch ______ 4:30 train.
A.
/; /
B.
the; the
C.
a; the
D.
the; /
【单选题】Speaker A: Excuse me， Professor Smith， can you spare me a few minutes? There‘ s something I‘ d like to speak to you about. I won‘ t keep you long. Speaker B :__________
A.
Of course not. Haven' t you seen have been pretty busy now?
B.
Well， I' m afraid we have to find some other time. I' m fully occupied now.
C.
No. I' 11 have an important meeting to attend this evening.
D.
Not possible， as I don' t know how long you will keep me.
【简答题】K1由1到3,输出信号有 变化。
【单选题】--- Can you spare me some paper? --- Sorry, mine ______.
A.
is run out
B.
has used up
C.
has been used
D.
has urn out
【单选题】Speaker A: Excuse me, Professor Smith, can you spare me a few minutes? There's something I'd like to speak to you about. I won't keep you long. Speaker B:_________
A.
Of course not. Haven't you seen have been pretty busy now?
B.
Well, I'm afraid we have to find some other time. I'm fully occupied now.
C.
No. I'll have an important meeting to attend this evening.
D.
Not possible, as I don't know how long you will keep me.
【单选题】数据流图是用于表示软件模型的一种图示方法，在下列可采用的绘制方法中，( )是常采用的。 Ⅰ.自顶向下 Ⅱ.自底向上 Ⅲ.分层绘制 Ⅳ.逐步求精
A.
Ⅰ和Ⅲ
B.
Ⅰ、Ⅲ和Ⅳ
C.
Ⅱ、Ⅲ和Ⅳ
D.
全部
【单选题】数据流图是用于表示软件模型的一种图示方法，在下列可采用的绘制方法中，常采用的方法是 Ⅰ．自顶向下 Ⅱ．自底向上 Ⅲ．分层绘制 Ⅳ．逐步求精
A.
Ⅰ、Ⅲ和Ⅳ
B.
Ⅱ、Ⅲ和Ⅳ
C.
Ⅰ、Ⅱ和Ⅲ
D.
Ⅰ、Ⅱ和Ⅳ
【单选题】-Excuse me, but can you spare me a few minutes to have a talk with me? -OK, . [ ]
A.
go ahead
B.
no way
C.
go on
D.
no chance
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