Why did the author do the self-experiment of plugging off the Internet for one month?

The mirror test is used to investigate children’s recognition of ( ). A: Spiritual self B: Subjective self C: Material self D: Objective self

A) Tony could not continue the experiment B) Tony finished the experiment last night. C) Tony thought the experiment was well done. D) Tony had expected the experiment to be easier.

Before the drug is used on human beings, experts have to ______ dogs. A: be experimented B: experiment C: experiment with D: experiment on

以下程序的输出结果是（）。 classA: deffun1(self):print("fun1A") deffun2(self):print("fun2A") classB(A): deffun1(self):print("fun1B") deffun3(self):print("fun2B") b=B() b.fun1() b.fun2() a=A() a.fun1() a.fun2()

The probability of an event E in an empirical<br/>experiment may change from experiment to experiment. ( )

experiment in vitro

According to the experiment, ________.

self表示

(13 Down) What must this experiment have the potential to do, to be a ______ (有效的) scientific experiment?