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【单选题】
What do Brian Nosek's preliminary results suggest?A.
The change in bias against blacks is slow in coming.
B.
Bias against blacks has experienced an unusual drop.
C.
Website visitors' opinions are far from being reliable.
D.
Obama's popularity may decline as time passes by.
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反馈参考答案：
举一反三
【多选题】infomation.csv如下图所示 使用df=pd.read_csv("information.csv",encoding='gbk'),需要取得“姓名"这列,可以使用的方法有
A.
df.iloc[:,'姓名']
B.
df['姓名']
C.
df.loc[:,'姓名']
D.
df.loc['姓名',:]
【单选题】information.csv如下图所示 使用df=pd.read_csv("information.csv",encoding='gbk')读进去后,取出所有年龄大于30岁的队员信息
A.
df.loc[df['年龄（岁）']>30,:]
B.
df.iloc[df['年龄（岁）']>30,:]
C.
df.loc[:,df['年龄（岁）']>30]
D.
df['年龄（岁）']>30
【简答题】调节循环系统的神经有____和____。
【简答题】由心脏出发流向全身的血管是______血管，循环系统包括______和______．
【单选题】—Shall we play football this afternoon? --_______
A.
Yes, that’s right.
B.
OK, I’ll be free then.
C.
What’s the matter?
D.
Of course, you may.
【简答题】选择方框内的句子补全对话。 A: Shall we play football together? B: 1 A: Why not? B: Because I have to go home to feed animals. A: 2 B: We have three sheep.two cows and some chickens . A: 3 B: Because my brother did...
【单选题】— Shall we play basketball this afternoon? — _____ I need to exercise very much. [ ]
A.
Why not?
B.
I agree with him.
C.
You are lucky.
D.
No, I don't want to.
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