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【单选题】
Section A Directions: In this section, you will hear 3 news reports. At the end of each news report, you will hear two or three questions. Both the news report and questions will be spoken only once. After you hear the question, you must choose the best answer for the four choices marked A) 、 B) 、 C) and D), then mark the corresponding letter on Answer sheet One with a single line through the center. Questions 1 and 2will be based on the following news item. Test 8 新题型.mp3:
A.
Christmas-time attacks made by Somali rebels.
B.
An explosion at a bus station in central Nairobi
C.
The killing of more than 70 Ugandans in Kampala
D.
Blasts set off by a Somali group in Uganda's capital
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举一反三
【单选题】The factors affecting human's perception include( )
A.
the characters of objects of perception, the percipient himself and the perception situation.
B.
human's intelligence, sensitivity, and interests to different things.
C.
human's intelligence, interests to different things and the perception situation.
【多选题】TTL门电路如图所示,其中可以实现Y=0的逻辑电路有: , 已知关门电阻Roff=0.91kΩ,开门电阻Ron=1.93kΩ。
A.
(a)
B.
(b)
C.
(c)
D.
(d)
【多选题】TTL门电路如图所示,其中可以实现Y=0的逻辑电路有: , 已知关门电阻Roff=0.91kΩ,开门电阻Ron=1.93kΩ。【图片】
A.
b
B.
c
C.
a
D.
d
【单选题】下列转舵机构中不属于往复式的是( ) 。
A.
十字头式
B.
拨叉式
C.
摆缸式
D.
转叶式
【单选题】Perception is
A.
the process by which individuals connect to their environment.
B.
strongly influenced by the receiver's current state of mind, role and understanding or comprehension
C.
a factor that can affect how meanings are ascribed.
D.
a complex physical and psychological process.
E.
All of the above describe perception.
【单选题】下列转舵机构中不属于往复式的是______。
A.
十字头式
B.
拔叉式
C.
摆缸式
D.
转叶式
【简答题】稳定 边界法 步骤 中将 δ由 大变小 变化 ,直到阶跃响应出现 。
【简答题】说明限制性内切核酸酶的命名原则要点。
【多选题】TTL 门电路如图所示,其中可以实现Y=0的逻辑电路有( ),已知关门电阻Roff=0.91千欧,开门电阻Ron=1.93千欧。
A.
b
B.
c
C.
d
D.
a
【简答题】说明限制性内切核酸酶的命名原则要点。
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