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【单选题】
32位的IP地址可以划分为网络号和主机号两部分。以下地址中,()不能作为源地址。
A.
0.0.0.0
B.
127.0.0.1
C.
10.0.0.1
D.
192.166.0.255/24
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【单选题】酰化成酯法不能直接测定的醇为: ( )
A.
伯醇
B.
仲醇
C.
叔醇
D.
α- 多羟基醇
【单选题】对固体电介质,施加下列电压,其中击穿电压最高的是( )
A.
直流电压
B.
工频交流电压
C.
高频交流电压
D.
雷电冲击电压
【单选题】According to paragraph 2, evidence from fossils suggests that
A.
extinction of species has occurred from time to time throughout Earth's history.
B.
Extinctions on Earth have generally been massive
C.
there has been only one mass extinction in Earth's history.
D.
dinosaurs became extinct much earlier than scientists originally believed.
【简答题】“不积跬步,无以至千里;不积小流,无以成江海”的名言告诉人们的哲理是( )。
【单选题】对固体电介质,施加下列电压,其中击穿电压最低的是( )
A.
直流电压
B.
工频交流电压
C.
高频交流电压
D.
雷电冲击电压
【简答题】The Tower of Yunshanshengdi was a two-storied building in the palace area. And the steps upwards are hidden in the rockeries.
【简答题】What's the definition of logistics? In a narrow sense, logistics is the flow and storage of goods from the point of origin to the point of consumption.
【单选题】Tengwang tower is a nine-storied structure at 57.5 meters _____
A.
highly
B.
high
C.
height
D.
in height
【单选题】The hospital opened 5 years ago. It _____ for 5 years. [     ]
A.
opened
B.
opens
C.
has been open
D.
has opened
【判断题】Staphylococcus has O-Ag in its cell wall.
A.
正确
B.
错误
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