In Switzerland, six miles west of Geneva,

问题：

In Switzerland, six miles west of Geneva, lies a collection of laboratories and buildings, and most curious of ally a circular mound (36) more than 650 feet in diameter. This cluster has unique importance. It is Europe’s (37) atomic city dedicated to investigating the atom for peaceful purposes. The strange buildings (38) the European Council for Nuclear Research, more popularly known, from their French initials as CERV. The council was (39) when a handful of statesmen and scientific experts met in Paris in 1950. Their aim was to " (40) an organization providing for cooperation among European states in nuclear research of a pure scientific and fundamental character."
The CERV agreement was signed in 1953, and work on the atomic city began in 1954. Today CERV’s (41) are among the most modern and the most diversified in the world. Impressive as the scientific aspect may be, the real significance of CKRV may lie (42) the thousand people—scientists, lab workers, and administrative—group drawn from the fourteen member nations (43) populate it. British engineers work (44) with Swiss electricians and Yugoslav nuclear physicists. The official languages are French and English, with German an unofficial third. But CFRV is (45) tower of Babel—the language of science is universal and all-embracing.

A．work with

B．belong to

C．consist of

D．are located