田间试验 field experiment

A．He failed to finish the experiment that day.

B．Hs hasn't had time to do the experiment.

C．He did only part of the experiment.

D．The experiment turned out well.

If you want to prove the hypothesis that this property of the renal blood flow is dependent on the autoregulation of the blood vessels, which kind of experimen you should performe？

A、acute and in vitro physiological experiment.

B、acute and in vivo physiological experiment.

C、cell culture

D、histological experiment

The aim of voyages Maury encouraged in the 1840s was ______.

A．to make some sound experiments in the oceans

B．to collect samples of sea plants and animals

C．to estimate the length of cable that was to be made

D．to measure the depths of two oceans

The bias blind spot can prompt a scientist to______.

A．overemphazise the value of experiments

B．refuse to accept the failure of his experiments

C．discard some valuable data

D．disbelieve data collected by others

Implies but not stated:

A．Psychologists do not yet know how people see.

B．The best experiments are those in which all factors are controlled.

C．The study of perception is going on now.

D．Perception does not involve psychological factors.

田间试验可按因素的多少分为()和()。

田间试验要求各处理小区作随机排列的主要作用是:()