A、Obesity is the necessary cause of hypertension.
B、HIV infection is the necessary cause of AIDS.
C、The propability of a disease by a necessary cause is over 95%.
D、The propability of disease by a necessary cause is less than 5%.
第1题
A、the third memory might be related to the formation of the new synapse.
B、three stages
C、the primary memory is the long-term memory
D、the secondary memory is the short-term memory
E、the second memory might be related to the synaptic plasticity.
第2题
A、three stages
B、the primary memory is the long-term memory
C、the secondary memory is the short-term memory
D、the second memory might be related to the synaptic plasticity.
E、the third memory might be related to the formation of the new synapse.
第3题
A、the change of pulmonary pressure is the driving force for the pulmonaty ventilation.
B、might be negative during respiration.
C、negative during the whole precess of breathing.
D、pulmonary pressure = atmosphere pressure - pulmonary elastic force
E、prevent venous return
第4题
A、negative during the whole precess of breathing.
B、pulmonary pressure = atmosphere pressure - pulmonary elastic force
C、prevent venous return
D、the change of pulmonary pressure is the driving force for the pulmonaty ventilation.
E、might be negative during respiration.
第5题
A、facilitate the venous return in the pleural cavity
B、the little fluid in the pleural cavity
C、constant during respiration
D、positive during expiration
第6题
A、the little fluid in the pleural cavity
B、facilitate the venous return in the pleural cavity
C、constant during respiration
D、positive during expiration
第7题
A、It depends on the plate separation.
B、It depends on the charge.
C、It is independent of the plate area.
D、It is independent of the dielectric between the two plates.
第8题
A、The fiber with big diameter always conduct faster.
B、The increase of extracellular K+ will increse the conduction velocity
C、Myelination of nerve fiber always decreases the conduciton velocity.
D、Increase of the temperature within physiological limit will increase the conduction velocity.
E、Anesthesia do not influence the conduction velocity.
第9题
A、Increase of the temperature within physiological limit will increase the conduction velocity.
B、The fiber with big diameter always conduct faster.
C、The increase of extracellular K+ will increse the conduction velocity
D、Myelination of nerve fiber always decreases the conduciton velocity.
E、Anesthesia do not influence the conduction velocity.
第10题
A、meta analysis is an important part of systematic evaluation
B、meta analysis is a qualitative synthesis of the results
C、Any clinical research problem can be solved by meta-analysis
D、meta analysis can reduce the bias of the original study
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