【单选题】The idea that aging can be cured implies the human lifespan can be increased , which some researchers suggest is possible. ( 句子主干是 ______) A) Aging can be cured. B) The human lifespan can be increased...
A.
Aging can be cured.
B.
The idea is possible.
C.
The idea implies the human lifespan can be increased.
【单选题】An argument answers all of the following questions except ________. A. what the main idea is B. why the idea is justified C. how you know the idea D. what your conclusion is