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【单选题】
L18 1. The writer________.
A.
didn't have her bag with her when she went to the pub
B.
had her bag with her when she went to the pub
C.
lose her bag on the way to the pub
D.
lose her bag after she left the pub
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参考答案:
举一反三
【简答题】委托指令有不同的形式,可以分为()两大类。 I.柜台委托 II.非柜台委托 III.网上委托 IV.人工电话委托A. Ⅰ、Ⅳ B. Ⅰ、Ⅱ C. Ⅱ、Ⅲ D. Ⅰ、Ⅲ
【单选题】The potential support ratio, or PSR (the number of persons aged 15-64 years per one older person aged 65 years or older), indicates the dependency burden on potential workers. The impact of demographi...
A.
7
B.
8
C.
9
D.
10
【单选题】12-65. Which of the following sentences is INCORRECT?
A.
New machinery were introduced in the factory.
B.
Poultry are very expensive in the city.
C.
The police are investigating the murder case.
D.
The militia were called out to rescue flood victims.
【单选题】利用集成计数器74LS161构成的电路如下图所示,请判断该电路实现的计数器模值是( )。
A.
9
B.
10
C.
7
D.
8
【简答题】12-65. Which of the following sentences is INCORRECT? (1.0分)A. A. New machinery were introduced in the factory. B. B. Poultry are very expensive in the city. C. C. The police are investigating the mur...
【单选题】数据库系统的核心是( )。
A.
数据
B.
数据库管理系统
C.
数据库
D.
操作系统
【简答题】下图所示计数电路的模值是( )。
【单选题】用于返回文本字符串中的字符数的函数是( )。
A.
LEN
B.
RIGHT
C.
MID
D.
LEFT
【多选题】某计数器电路如下图所示,求计数器的模值,并画出状态转换图,下面给出的分析过程正确的是( )。【图片】
A.
驱动方程:
B.
驱动方程:
C.
状态转换图:
D.
状态转换图:
E.
状态转换图:
F.
模5计数器
G.
模6计数器
【单选题】数据库系统的核心操作是( )。
A.
查找
B.
查询
C.
筛选
D.
替换
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