多选题Eager to maintain the party"s lighthearted atmosphere, the host skillfully averted ______ between two of his guests with ______ change of subject.

多选题The legislator is known on Capitol Hill for his oratorical spontaneity, his ability to deliver ______ speech.

多选题Geologists Harris and Gass hypothesized that the Red Sea rift developed along the line of a suture (a splice in the Earth's crust) formed during the late Proterozoic era, and that significant observable differences in the composition of the upper layers of rocks deposited on either side of the suture give clues to the different natures of the underlying igneous rocks. Other geologists argued that neither the upper rock layer nor the underlying igneous rocks on the one side of the rift differ fundamentally from the corresponding layers on the other side. These geologists believe, therefore, that there is inadequate evidence to conclude that a suture underlies the rift. In response, Harris and Gass asserted that the {{U}}upper rock layers{{/U}} on the two sides of the rift had not been shown to be of {{U}}similar age, structure, or geochemical content.{{/U}} Furthermore, they cited new evidence that the underlying igneous rocks on either side of the rift contain significantly different kinds of rare metals. According to the passage, Harris and Gass have mentioned all of the following properties of rocks along the Red Sea rift EXCEPT A. age of the upper layers of rock. B. structure of the upper layers of rocks. C. geochemical content of the upper layers of rocks. D. metallic content of the underlying igneous rocks. E. age of the underlying igneous rocks.

多选题After her long, arduous hike, Hillary was ______: she wanted to eat until she could eat no more.

多选题The visually striking movie was diminished by its ______ content: its characters were inane, and its story was unintelligent.

多选题Communal nests have advantages and disadvantages for animals like voles and mice: they enable the animals to ______ body heat, but leave them more ______ to discovery by predators.

多选题The ______ of Maria Irene Fornes" play Mud—a realistic room perched on a dirt pile —challenges conventional interpretations of stage scenery.

多选题You"re more likely to see a tavern or restaurant named the Whistle Post than to notice the little signs along the tracks marked with a W or an X. The whistle-post signs tell train engineers where to begin blowing a warning prior to crossing an intersection. They are especially useful where the railroad crossing has no automatic barrier—on rarely traveled crossings or when approaching rail yards, for example. Train whistles have largely been replaced by air horns, but the rules of rail travel still call for two short, one long, and one short blast of the horn to be repeated until the train reaches the crossing. The noise may be a nuisance, but studies have shown that accidents double when the horn is not used. Based on the information in the passage, which of these can be inferred about whistle posts?

多选题Brachiopods, clamlike bivalves of prehistoric times, were one of the most ______ forms of life on the Earth: more than 30,000 species have been ______ from fossil records.

多选题Native American potters often ______ the shortcuts offered by modern technology (such as the use of commercial clay, pigments, or kiln firing), instead ______ the traditional methods of their ancestors.

多选题Artificial light ______ the respiratory activity of some microorganisms in the winter but not in the summer, in part because in the summer their respiration is already at its peak and thus cannot be ______. A. inhibits B. reflects C. enhances D. lessened E. measured F. increased

多选题In stark contrast to the vague and often rambling comments of other students, Jessica"s remarks were refreshingly ______.

多选题The ______ experiences of Madonna Swan, the 1983 North American Indian Woman of the Year, cannot be fully appreciated if they are ______ in a tidy summary.

多选题The treasurer was intimidated by the ______ demeanor of the auditors who neither spoke nor smiled when they arrived.

多选题 Directions: For each of the following sentences, select the two answers of the six choices given that, when substituted m the sentence, both logically complete the sentence as a Whole and create sentences that are equivalent to one another in meaning. Questions 1-6

多选题I like the cow joke because it provides an allegory for thinking simply about the world, and it allows me to jump right in to an idea that doesn't get written about too much, but that is essential for the everyday workings of science: "Before doing anything else, abstract out all irrelevant details!" The author suggests that "thinking simply" works because A. abstract models are more prone to error than are empirical observations. B. some problems can be solved if details are ignored. C. scientists should adhere closely to the concerns of the public. D. empirical facts can never be successfully modeled. E. events are often self-explanatory.

多选题This new report focuses on how seemingly ______ technological design features, often cosmetic in nature, can actually ______ consumer"s decisions in profound ways.

多选题It would be a waste of time for any reviewer to bother ______ a book whose utter worthlessness is ______ to even the least discerning reader.

多选题Farming had been profitable on the Great Plains for many decades, but by 1938 ______ agricultural practices and years of inadequate precipitation had ______ the land.

多选题Commerce on the remote island was conducted exclusively by ______, exchanging goods for goods.