单选题1 By the 1840s, British North America had developed a vibrant commercial economy based on its abundant natural resources and a growing international trade. Fish, furs, timber, and grains represented over 90 percent of all economic activity. The oldest of the resource commodities, fish, was traditionally associated with Newfoundland and continued to dominate that colony's economy throughout the nineteenth century. The other traditional resource, fur, had a much smaller economic value compared to other resources. However, the fur trade was of tremendous value politically because it provided the means for Great Britain to retain its claim over much of Canada, and also formed the basis of the relationship between the British and the aboriginal peoples. 2 Timber and grain eventually replaced fish and fur in economic importance. Every province of British North America except Newfoundland was involved in the timber trade. In New Brunswick, the timber industry controlled every aspect of life, and settlement was closely connected to the opening of new timber territory. In the extensive agricultural lands of the St. Lawrence Valley and Upper Canada, wheat quickly became the dominant crop. Wheat met a growing demand abroad and it transported well as either grain or flour.

单选题According to the passage, why did colonial printers avoid major publishing projects?

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单选题The word "excavating" in line 19 is closest in meaning to

单选题What aspect of trees does the professpr mainly dicuss?

单选题The name "squirrel" is commonly used for those forms of the family Sciuridae that live in trees, __________ it is equally accurate for ground dwelling types.

单选题The word "unprecedented" in line 25 is closest in meaning to

单选题________ is not clear to researchers.

单选题The phrase "the one" in line 8 refers to a single

单选题In classical and medieval times, the study of music shared many features with the discipline of mathematics, such as an interest in proportions, special ratios, and recurring patterns. In the twentieth century, the introduction of twelve-tone music and the widespread use of computers inspired further study into the relationship between musical and mathematical abilities. Musical performances require sensitivity to ratios that are often complex, and to appreciate the operation of rhythms, a performer must have some basic numerical competence. 1. Which of the following can be inferred from the passage?

单选题1 Cool has withstood the fleeting nature of most slang. As a modifier, as a noun, and as a verb, cool has been around a long time. Shakespeare used cool as a verb, and the word later evolved into other parts of speech. It has been used as an adjective since 1728 to describe large sums of money, as in "worth a cool ten million." 2 Cool, meaning "excellent" or "first-rate," was popularized in jazz circles, and jazz musicians and jazz lovers still refer to great works as "cool." As long as Miles Davis's classic 1957 album, Birth of the Cool, remains one of the best-selling jazz recordings of all time, cool will stay cool--it will carry the same weight as it did more than 50 years ago. One reason for the endurance of cool is that its meaning continues to evolve. While it meant "wow!" two decades ago, today it is more often used to mean, "That's OK with me," as in "I'm cool with that./

单选题1 Zora Neale Hurston devoted five years to the collection of rural black folklore in Haiti, the West Indies, and the American South. Her ear for the rhythms of speech and her daring in seeking initiation into many voodoo cults resulted in ethnographic studies such as Mules and Men, which conveyed the vitality, movement, and color of rural black culture. 2 Hurston continued her fieldwork in the Caribbean but eventually followed her most cherished calling, that of fiction writer. Their Eyes Were Watching God (1937), a novel about a black woman finding happiness in simple farm life, is now her most famous book, although for thirty years after publication, it was largely unknown, unread, and dismissed by the male literary establishment. In this novel, Hurston gives us a heroic female character, Janie Crawford, who portrays freedom, autonomy, and self-realization, while also being a romantic figure attached to a man. This novel reveals an African American writer struggling with the problem of the hero as woman and the difficulties of giving a woman character such courage and power in 1937. 3 From the beginning of her career, Hurston was criticized for not writing fiction in the protest tradition. Her conservative views on race relations put her out of touch with the temper of the times. She argued that integration would undermine the strength and values of African American culture. Hurston died in poverty and obscurity in 1960, and it was only afterward that later generations of black and white Americans were to rediscover and revere her celebrations of black culture.

单选题After flax is washed, dry, beaten, and combed, fibers are obtained for use in making fabric. A B C D

单选题Why does the student wisit the Housing Office?

单选题Listen to Track 4. A. She is impressed by how much the student knows about redirecting. B. She thinks it is time to move on to the next part of this lecture. C. The student's answer is not an example of a displacement activity. D. The student should suggest a different animal behavior to discuss next.

单选题(In) June, 1846, (near) Sacramento, California, a (number) of new settlers rebelled in the Bear Flag Revolt and (proclaiming) California an independent republic.

单选题The cultures early of the genus Homo were generally distinguished by regular use of stone tools and by a hunting and gathering economy.

单选题According to the passage, why did the government pass the Timber Culture Act of 1873 ?

单选题Which of the following can be inferred from the passage about the Timber Culture Act of 18737

单选题The word "postulated" in line 19 is closest in meaning to (a) analyzed (b) doubted (c) persuaded (d) suggested