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【单选题】
若各个标志值都扩大2倍,而频数都减少为原来的1/3,则平均数( )。A.
扩大2倍
B.
不变
C.
减少到1/3
D.
扩大6倍
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举一反三
【单选题】What a____ it is for the two Johnson sisters to fall in love .with the two Hans brothers!
A.
distinction
B.
coincidence
C.
fashion
D.
relationship
【简答题】What will Mr. Johnson get if he places an order within the next ten days? Mr. Johnson will get ______ by mid-February.
【单选题】What was SC Johnson accused of in the class action lawsuits? 单选哦
A.
It gave consumers the impression that all its products were truly green.
B.
It gave a third party the authority to label its products as environmentally friendly.
C.
It misled consumers to believe that its products had been certified by a third party.
D.
It sold cleaning products that were not included in the official“Greenlist”.
【单选题】What can be concluded from the passage?
A.
Amy Johnson was the first pilot to fly to Australia all by herself.
B.
Amy Johnson's parents were rich and generous.
C.
Amy Johnson was the first woman who owned an airplane.
D.
Amy Johnson's dream came true.
【单选题】以下关于原子轨道的叙述正确的为( )。
A.
原子轨道是描述核外电子的运动状态
B.
原子轨道是电子运动的轨迹
C.
原子轨道是表示电子在空间各点出现的几率密度
D.
原子轨道是表示电子在空间各点出现的几率
【单选题】In what situation does Johnson commit a tort of negligence?
A.
Johnson leaves a campfire with a desire to burn down the forest.
B.
Johnson carelessly leaves a campfire burning, but it burns out.
C.
Johnson carelessly leaves a campfire burning, but it burns out, and then lightning causes a fire that burns down the forest.
D.
Johnson carelessly leaves a campfire burning, and the fire spreads to burn down the forest.
【单选题】下列关于原子轨道的叙述正确的是( )。
A.
原子轨道是电子运动的轨迹
B.
原子轨道是描述核外电子的运动状态
C.
原子轨道是表示电子在空间各点出现的几率
D.
原子轨道是表示电子在空间各点出现的几率密度
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