The multinational training program is mostly concerned with the relation between Americans and ______.

A．In science, it is not difficult to distinguish fact from fiction.
B．Today few people have any notions of the meaning of science.
C．Practical-minded people can understand the meaning and objectives of pure science.
D．Scientists engaged in theoretical research should not be blamed for ignoring the practical side of their discoveries.

A．IT culture.
B．Operating systems.
C．Desktop antivirus software.
D．The efforts by online security vendors.