49. The two companies are convinced that with joint effort, business between them will be developing to their mutual .

A. 　 Researchers from the Harvard School of Public Health.

B. 　 Scholars from Harvard University.

C. 　 Experts from the Medical School of Harvard University.

D. 　 Doctors from the Free Clinic in Harvard.

A. 　 peaceful

B. 　 motionless

C. 　 deaf

D. 　 dumb

A. 　 Now matter how

B. 　 No matter when

C. 　 No matter what

D. 　 No matter why

A. 　 Hosting a radio program.

B. 　 Giving a lecture on management.

C. 　 Doing a presentation in a company.

D. 　 Attending a meeting on project development.

A. 　 Find financial support.

B. 　 Improve urban planning.

C. 　 Involve local residents in the effort.

D. 　 Raise public awareness of the issue.

A. 　 She should work in a hospital.

B. 　 She should have retired earlier.

C. 　 She is too young to be a nurse.

D. 　 She looks younger than she is.

A. 　 They may be interpreted to threaten the user’s safety.

B. 　 They may be sold to private companies to make profits.

C. 　 They can be used for the benefit of the government.

D. 　 They can be targeted for public service advertising.

A. 　 He checks and responds to them frequently.

B. 　 He accesses them only during his real work hours.

C. 　 He no longer responds to the most trivial of them.

D. 　 He opens his inbox only when it's necessary.

A. 　 Because the new generation had more demand on them.

B. 　 Because colleges believed they could attract more students.

C. 　 Because colleges could be financed by building facilities.

D. 　 Because the building market was highly competitive.

A. 　 Pop music.

B. 　Modern opera.

C. 　 Pencil drawing.

D. 　 American poetry.