There are a lot of problems today which are beyond any single person's ability to solve,and they call for united .A.force B.efforts C.energy D.operations能不能将这四个词辨析一下？

There are a lot of problems today which are beyond any single person's ability to solve,and they call for united .A.force B.efforts C.energy D.operations能不能将这四个词辨析一下？
There are a lot of problems today which are beyond any single person's ability to solve,and they call for united .
A.force B.efforts C.energy D.operations
能不能将这四个词辨析一下？

There are a lot of problems today which are beyond any single person's ability to solve,and they call for united .A.force B.efforts C.energy D.operations能不能将这四个词辨析一下？
选择 B. efforts. “如今有许多超出个人解决能力的难题,这都需要团结的力量才能解决.”
你这道题中很显然是在说人,所以分析这四个词在说人的时候强调的是人的哪些方面：
A. 力量,力（物理）,或军队.如natural force, air force.用在人身上就是军队,the force就是指人民军队.
B. 努力,强调人为的力量.“团结”是很经典的说法：united/joint efforts
C. 能量,体力.用在人身上更偏向physical energy,与人身体本身、身体素质有关的体力.
D. operations是指“操作、手术”等意义,是指人有意识的改变某物的作为.但是用在此题中united是团结,与语义不符

B efforts

应该是B.efforts翻译一下吧！如今有许多超出个人解决能力的难题，它们需要团结的力量。

b