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【单选题】
指出下列假设检验哪一个属于双侧检验( )A.
H o :μ=μ 0 H 1 : μ≠μ 0
B.
H o :μ≥μ 0 H 1 :μ0
C.
H o :μ≤μ 0 H 1 :μ>μ 0
D.
H o :μ>μ 0 H 1 :μ≤μ 0
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举一反三
【单选题】Choose the best choice according to the cultural context. You are waiting in line at the store to buy something when an American standing in front of you sneezes. You should say:
A.
You should not say anything.
B.
"Bless you. "
【单选题】012在下列命题中,属于主观唯心主义观点的是
A.
人的理性为自然立法
B.
我思故我在
C.
物是绝对观念的外化
D.
万物皆备于我
E.
道生一，一生二，二生三，三生万物
【单选题】In brief, it is not possible to make recommendation regarding the supervision of adolescents that fit all contexts. The physical environment, the cultural context, and the personalities of those invol...
A.
restate their opinion
B.
summarize the main points
C.
make a recommendation
D.
make a prediction (often stating what may happen if the recommended action is or is not taken)
【单选题】Choose the best choice according to the cultural context. You go to a convenience store in America to buy a pack of candy. After you pay for the candy, the cashier gives it to you. You should say:
A.
"Thank you!"
B.
You should not say anything. Americans do not thank cashiers for simply doing business.
【单选题】Choose the best choice according to the cultural context. Your American friend, Steve, pays for the bill after you have lunch together. You should say:
A.
"Thank you for dinner!"
B.
You shall not say anything because you two are good friends.
【单选题】7分析以下代码: class A: def __init__(self, s): self.s = s def print(self): print(s) a = A("Welcome") a.print()
A.
程序有错误,因为A类没有构造函数。
B.
程序有错误,因为A类应该有一个带有签名的print(self,s)。
C.
程序有错误,因为A类应该有一个带有签名的print(s)。
D.
如果将print(s)改为print(self.s),程序将运行。
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