更多"Most environmental problems exist b"的相关试题:
[单项选择]Most environmental problems exist because adequate measures for preventing them ______ taken in the past.
A. was not
B. were not
C. were not being
D. being not
[单项选择]The match was cancelled because most of the members ______ a match without a standard court.
A. objected to having
B. were objected to have
C. objected to have
D. were objected to having
[单项选择]I rarely wear a raincoat because I spend most of my time in a car.
A. normally
B. seldom
C. continuously
D. usually
[单选题]When vectoring _______ the radar controller should ensure that adequate terrain clearance will exist at all time until the aircraft reaches the point where the pilot will resume his own navigation.
A.a VIP flight
B.a VFR flight
C.a special rule flight
D.an IFR flight
[单项选择]All （） is an adequate supply to meet the demand.
A. needed
B. the things needed
C. that needed
D. what is needed
[单项选择]The main advantage of a system of guaranteed existence is ______.
A. free contract
B. more stable society
C. more freedom in interpersonal relationships
D. less burden on the government
[单项选择]Classes will cease to exist by the time communism______ throughout the world.
A. is achieved
B. has been achieved
C. will be achieved
D. will have been achieved
[单项选择]Matter on the Sun can exist only in the form of gas because of the Sun's ________.
A. size
B. age
C. location
D. temperature
[单项选择]By saying "... those raw materials exist already in abundance in every nation", the author is referring to ______.
A. hosts and staff to welcome visitors
B. people, the environment and culture
C. the capital used to build the tourism industry
D. the environmental resources to build up tourism
[单项选择]Nancy became a taxi driver because
[单项选择]The policeman questioned the man because
A. he had seen him doing a strange thing
B. he thought he recognised him
C. the man had fallen and needed attention
D. the man had tried to escape
[单项选择]Who needs ESP courses most
A. Working people.
B. College students.
C. Beginners.
D. Intermediate learners.
[名词解释]Most—Favored Nation Treatment
[单项选择]Airline pilots have breakfast at midnight because ______.
A. they do not act according to local time
B. doctors advice them to do so
C. they are too busy with their work
D. it is time for breakfast according to local time
[单项选择]Firms hold regular sales conferences because they can ______.
A. exchange information about the business
B. receive higher education
C. travel around the world
D. take the opportunities to stay together with their colleagues
