A．ccording to the passage, the earth in its very early period was ______.

A． in molten state

B． in water state

C． in rock state

D． a vast ocean

[单选题]A．ccording to this passage,A．brokers usually perform. the same kinds of services to their customers.B．brokers have little contact with each other.C．open competition tends to result in a common price for similar transactions at any given moment.D．chan

[单选题]A．ccording to the passage, Katy __________________.A． likes travelling very much B. doesn’t want to live with a familyC． only teaches writing in English D. will go back to school after she leaves Nepal

[单选题]A．ccording to the passage, the suburbs ______.A． were deserted at nightB． became larger and largerC． had a high construction costD． had some declined business center

[单选题]A．ccording to the passage, the ancestors of the Potter family most probably _______.A． owned or drove a cartB． made things with metalsC． made kitchen tools or containsD． built houses and furniture

[单选题]A．ccording to the passage, the group with the highest AIDS rate is_________ .A． the white AmericansB． African-American menC． the American womenD． the black American women

[单选题]A．ccording to this passage, which of the following is true?A． The Negroes came to North America in order to work for the earliest immigrants.B． The Negroes also belonged to the earliest immigrants to the North America.C． The Negroes were brought to A

[单选题]A．ccording to this passage, if the cylinder non-return valve were not leakyA．an explosion would not be causedB．there still would be a danger of explosionC．oil would not deposit in the air pipeD．pipe lines would not have to be drained

[单选题]A．ccording to the passage, the screen or cutters are fitted to __ (1)kill bacteria (2)break up the solid waste (3)remove solid matter with large sizeA．(1)B．(2)C．(2)(3)D．None of (1)(2)(3) is true

[单选题]A．ccording to the passage, it is recommended that the heat exchanger side be cleaned by .A．flushing with chemical solvent without being dismantledB．brushing mechanically after being disassembledC．flushing with flesh water onlyD．flushing with clean oi

[单选题]A．ccording to the passage，the Publicity and Promotions department________A．has the final decision in producing an albumB．handles the recording arrangements for the bandC．sends representatives to look for new talentD．visits bars and night clubs