测不准效应
参考答案:
由于观察者的参与,改变了被观察者的自然状态,被观察者或单位可能做出种种假象来掩饰事实的本来面目,使真实状态的测定不可能。
制成标本的鸟皮()
A.13
B.12
C.14
D.16
The famous actor keeps fit and athletic by __________ at the gym for an hour every morning.
A.making out
B.figuring out
C.working out
D.turning out