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【单选题】
本学期实验中,Escherichia coli 在液体培养基中37°C过夜静置培养后,观察的生长状况为:A.
沉淀生长
B.
菌膜生长
C.
均匀浑浊
D.
油煎蛋生长
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举一反三
【单选题】Which of the following statements is TRUE according to the story?
A.
The sea looked like a piece of gold.
B.
Seabirds flew away when Tim arrived.
C.
Tim was the only person on the beach.
D.
The sky got dark as Tim reached the cave.
【单选题】According to the author, when will the problems to explore the deeper sea be largely solved?
A.
In the next generation.
B.
By the end of the 20th century.
C.
Inthe near future.
D.
By the middle of the 215. century.
【单选题】According to the author, when will the problems to explore the deeper sea largely be solved?
A.
In the next generation.
B.
By the end of the 20th century.
C.
In the near future.
D.
By the middle of the 21st century.
【单选题】According to the passage, all the following may cause damage to the sea EXCEPT
A.
sewage
B.
pesticides
C.
detergents and fertilizers
D.
plankton which cover bathers with itchy slime
【单选题】以下（ ）不是平面弯曲变形的特征。
A.
弯曲变形后的轴线与载荷作用面不在同—个平面内
B.
弯曲载荷均作用在同—平面内
C.
弯曲时横截面仍保持为平面
D.
弯曲变形后的轴线是一条平面曲线
【简答题】Most of the foods grown and processed according to the federal standards will bear the seal ______.
【单选题】Who might be the first to find and kill whales in the sea, according to the passage?
A.
The Basque people of France and Spain.
B.
People in what would become Norway.
C.
People from Denmark and the Netherlands.
D.
People in what would become America.
【单选题】According to the passage, which of the following is TRUE?
A.
The deeper the sea, the stronger the waves.
B.
The sea is always calm at a great depth.
C.
Huge waves start from the depth of sea.
D.
Shallow waters will not be affected by big waves.
【单选题】以下（ ）不是平面弯曲变形的特征。
A.
弯曲载荷均作用在同—平面内 。
B.
弯曲变形后的轴线与载荷作用面不在同—个平面内 。
C.
弯曲时横截面仍保持为平面 。
D.
弯曲变形后的轴线是一条平面曲线。
相关题目：
【单选题】以下（ ）不是平面弯曲变形的特征。
A.
弯曲变形后的轴线与载荷作用面不在同—个平面内
B.
弯曲载荷均作用在同—平面内
C.
弯曲时横截面仍保持为平面
D.
弯曲变形后的轴线是一条平面曲线
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