A. extend
B. stretch
C. expand
D. prolong
76 7.The new machinehas now performed _ for 2,000 hours.A. relianceB. relyC. rel
53、professorA. n.警察B. n.教授C. n.产品D. n.牧师
[单选题]The ______ professor found the matter ______.A. surprising, surprisedB. surprised, surprisedC. surprised, surprisingD. surprising, surprising
[单选题]It was ______ the professor regarded with such contempt.A. he whoB. him thatC. him whoseD. those
Professor: First of all, allow me to introduce Professor John Brown from Cambrid
[单选题]First two hours, now three hours—this is how far in advance authorities are
[单选题]First two hours, now three hours—this is how far in advance authorities are
[单选题]First two hours, now three hours—this is how far in advance authorities are
[单选题]First two hours, now three hours—this is how far in advance authorities are
[单选题]First two hours, now three hours—this is how far in advance authorities are