题目内容
（请给出正确答案）
Experiments have to be made under carefully _____ conditions .
A.treated
B.supplied
C.related
D.controlled
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更多“Experiments have to be made un…”相关的问题
Experiments show that monkeys have language.
A．Y
B．N
C．NG
Scientists have done countless experiments to show that praise is far ______ (effective) than criticism in improving human behavior．
A.As a whole
B. As a rule
C.On the average
D.By all means
In the experiments, ______.
A．there was an increase in the human consumption of salt
B．salt -eaters have bad health conditions
C．the environment was strictly monitored
D．high -blood pressure was easier put under control
A．and could possibly cause death
B．and had rather mild effects
C．but was not deadly
D．and did not have the usual signs
The experiments show that high-fat diets 查看材料
A.the volunteers do
B.because she does not have a weight problem
C.because the life there can be very boring
D.make people overeat
E.because she was her own boss
F.after passing a high-protein test
Nicola Waiters had time for the experiments 查看材料
A.the volunteers do
B.because she does not have a weight problem
C.because the life there can be very boring
D.make people overeat
E.because she was her own boss
F.after passing a high-protein test
From what Warneken said in the passage, we can infer that ______.
A．no other nonhuman primate can be as altruistic as chimpanzees
B．altruism has never been observed in any nonhuman animals before
C．chimpanzees did not display altruism in their previous experiments
D．it is the first time they have conducted experiments about chimpanzees
What do experiments show about our memories？
A．We are more likely to remember things we do than things we see.
B．People always remember pleasant things rather than unpleasant ones.
C．Our ability to remember something depends on our feelings when it happens.
D．We tend to have better long-term memories than short-term memories.
