One of the major difficulties of research into human health problems is the difficulty of ______.
A: knowing how many factors there are
B: isolating particular, individual factors from the complex human environment
C: knowing the complex human environment
D: increasing the number of the competent physicians
A: knowing how many factors there are
B: isolating particular, individual factors from the complex human environment
C: knowing the complex human environment
D: increasing the number of the competent physicians
B
举一反三
- The passage is mainly about ______. A: the composition of environment B: the impact of environment on human C: the impact of human on environment D: the causes of environmental problems
- Major influence factors on business purchase staff are: environment factors, organizational factors, factors, individual factors and Internet factors.
- Americans lay particular emphasis on individual thinking, is to splits a complex thing into simple essential factors, and then study one by one.
- Environment, resources and () are the three major problems facing<br/>human society today? A: substances B: population C: pollution
- Nevertheless, possible negative impacts of GMOs on environment and human health, _______ suggested in some scientific research, have posted concerns for the public.
内容
- 0
How human beings and their environment act _____ each other. A: upon B: for C: as D: to
- 1
Which of the following are the factors contributing to the development of agricultural culture in China？（ ） A: rich landforms B: favorable climates C: human’s desire D: oceanical environment E: continental movement
- 2
智慧职教: The human brain is a complex ______.
- 3
Which of the following factors is the material prerequisite for physical and mental development? A: Education B: Individual practice activities C: The environment D: Genetic factors E: Individual epigenetic factors
- 4
] The most complex object in the universe is the human brain.