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【判断题】
只有α和β紫罗兰酮在自然界里存在,γ紫罗兰酮在自然界的存在未见报道。A.
正确
B.
错误
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举一反三
【简答题】1000的地形图比例尺精度为 m,1:500的地形图的比例尺精度为 m。
【单选题】What does “the device” mainly refer to in the last sentence of the passage?
A.
Mobile phone
B.
Telephone.
C.
MP3 player.
D.
iPad.
【单选题】地形图的比例尺不同,其比例尺精度也不同。1:1000地形图的比例尺精度为_________。
A.
0.010m
B.
0.100m
C.
1.000m
D.
0.001m
【单选题】Do the sports events mainly refer to the horseracing, the wrestling, and the archery?
A.
No.
B.
Yes.
【单选题】The Hispanics mainly refer to the ethnic people immigrating to the U. S. from ______.
A.
Latin America
B.
South Africa
C.
Canada
D.
Russia
【单选题】The Racial Problems mainly refer to discrimination against people except ( ).
A.
local Indians
B.
blacks
C.
whites
D.
Asians
【简答题】What does “the device” mainly refer to in the last sentence
of the passage?A. Mobile phone. B. Telephone. C. MP3 player. D. iPad .
【简答题】工业仿真技术能够为企业带来多方面的好处
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