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【单选题】
The interaction and bilateral influence of the agricultural society and __________ promoted the development of Chinese culture.A.
the isolated society
B.
the democratic society
C.
the clan society
D.
the nomadic society
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举一反三
【单选题】A vector A has components A x = 12.0 m and A y = 5.00 m. What is the angle that vector A makes with the x - axis?
A.
12.6°
B.
22.6°
C.
32.6°
D.
67.4°
【简答题】根据涵洞出水口是否被下游水面淹没,可分为________和_________两类。
【单选题】The teacher asked her,"Does the sun rise in the east?" The teachet asked her ___ the sun ___ in the east.
A.
if; rise
B.
if; rises
C.
whether; rose
D.
whether did; rise
【简答题】客户对于故障诊断有什么期待？
【简答题】Vector A has a magnitude n times ______vector B.(fill in two words)
【单选题】A vector A has components A x = 12 m and A y = 5.0 m. What is the magnitude of vector A ?
A.
7.0 m
B.
13 m
C.
17 m
D.
60 m
【单选题】对于importjava.util.Vector，以下哪种说法是错误的?
A.
Vector类属于java.util包
B.
Vector类放在……/java/util/目录下
C.
Vector类放在java.util文件中
D.
Vector类是SUN公司的产品
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