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41. In selecting a material, the engineer’s interest is in its properties which determine how it will perform under the loads and condition____it is subject.
A. where B. which C. in which D. to which
42. To meet the ever increasing demand____oil-refining equi pment, the company will produce more of such equipment.
A. of B. on C. with D. for
43. “The president made a brilliant decision, didn’t he?”
“Yes, he did. I don’t know what I would have done if I____to make that decision.”
A. were B. had had C. have had D. had
44. Animal mothers are devoted to their young and____ them with love and discipline.
A. mind B. watch C. help D. tend
45. The physicists propose that our attention____the use of special methods of thinking and acting.
A. would be directed towards B. should be directed towards C. is directed towards D. directs towards
46. According to the acoustics, continual exposure____ noise of high intensity would lead to loss of hearing.
A. of B. with C. to D. by
47. We are convinced____ the righteousness of our cause.
A. of B. on C. over D. at
48. Urban congestion would greatly be relieved if the____charged on public transport were more reasonable.
A. prices B. tickets C. fees D. fares
49. You’d better let me know as soon as there is a(n)____position in the branch office.
A. empty B. vacuum C. hollow D. vacant
50. They will never reconcile themselves to____.
A. defeat B. their defeat C. be defeated D. have their defeat