Erla Zwingle is currently living in _____.

A . alternating current B . omnidirectional current C . direct current D . sinusoidal current

A . velocit in knot B . irection from which it flows C . estimated current D . direction toward which it flow

A . an alternating B . a rush C . a direct D . an exciting

A . the same as B . much larger than C . less than D . equal

A . speed of the current at a particular time B . maximum speed of the current C . direction from which the current flows D . direction in which the current flow

A . A current at minimum flow B . A current coming in C . A current going out D . A current at maximum flow

A . density differences of the water B . rotation of the earth C . direction of primary circulation of air D . all of the above

A . twice as expensive as B . twice as more expensive as C . as twice more expensive as D . as twice expensive a

A . AC B . DC C . generator D . fresh water generator

A . twice as expensive as B . as twice expensive as C . as expensive twice as D . expensive as twice a

A . the density of the water B . the air temperature C . the presence of a high pressure area near it D . underwater soil conditio

A.speed of the current at a particular time B.maximum speed of the current C.direction from which the current flows D.direction in which the current flows

A．upgrades B．update C．degrade

A.the same as B.much larger than C.less than D.equals

是 否

A．accounts payable B．accounts receivable C．cash equivalents

A．inventory B．copyright C．cash D．Trademark

A．exposes the misalignment between economy and values B．enables economy to become a servant to ordinary people C．constrains ordinary people"s life with economy D．causes the world epidemic of youth unemployment

A．1.21 B．4.71 C．5.71 D．7

Country music is an American popular-music style.In its current form, country music is a combination of two separate musical traditions: the styles of the Southeastern states and the music of the Southwest, especially Texas.Both styles influenced and were influenced by the blues and by black rural dance music. The first country artists to be widely known achieved popularity in the late 1920s.The music of these performers was heard throughout the south during the 1920s and ''30s on radio programs. By the 1950s, country music had become a significant force in pop music.Regular appearances on the radio show made stars of many performers.The singer-songwriter Hank Williams wrote four million-seller songs in 1950, seven in 1951, and four more in1953. By the 1970s, some country musicians began combining country music with electric instruments, creating a country rock sound. (1).What does “Both styles” in Paragraph 1 refer to？ () A.Country music style. and the musical style. of the Southeastern states. B.The musical styles of the Southwestern states and the Southeastern states. C.The Southwestern musical style. and Texas musical style. D.The styles of blues and the black rural dance music (2).Country music was not really an important pop music until (). A.1920s B.1930s C.1940s D.1950s (3).Hank Williams () in 1951. A.wrote seven million songs B.sold seven million copies of his songs C.wrote seven songs D.sold seven million copies of his seven songs (4).Electric instruments add to country music a style. of (). A.rock music B.blues C.black music D.Southern music (5).What do you think can be a proper title of this passage？ （） A.Hank Williams, A Great Singer and Songwriter B.The Influence of Blues and Black Music C.A Brief Introduction to Country Music D.Country Music Combined With Electric Instruments