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- 1. Multiple ChoiceBiology Question 1
What is the lecture mainly about?A. How animals emit ultrasonic pulsesB. How bats use acoustical signalsC. A comparison of echolocation and radarD. Variations among bats in the use of ultrasound - 2. Multiple ChoiceBiology Question 2
Why does the professor decide NOT to add more information to the diagram on the board?A. She wants students to complete the diagram themselves as an assignmentB. She needs to look up some information in order to complete the diagram accuratelyC. The additional information is not relevant to the topic that she wants to discuss nextD. Students already have the additional information in their textbook - 3. Multiple ChoiceBiology Question 3(1).
According to the professor, what are two ways in which a moth might react when it detects the presence of a bat? Choose 2 answersA. The moth might stop beating its wingsB. The moth might emit high-frequency soundsC. The moth might leave the areaD. The moth might change its color to match its surroundings - 4. Multiple ChoiceBiology Question 3(2).
According to the professor, what are two ways in which a moth might react when it detects the presence of a bat? Choose 2 answersA. The moth might stop beating its wingsB. The moth might emit high-frequency soundsC. The moth might leave the areaD. The moth might change its color to match its surroundings - 5. Multiple ChoiceBiology Question 4.
What surprising information did a recent experiment reveal about lesser spear-nosed bats?A. They filter out echoes from some types of treesB. They can analyze echoes from stationary objects with complex surfacesC. They cannot analyze "jagged" echoesD. They cannot analyze echoes from certain types of small moving objects - 6. Multiple ChoiceBiology Question 5
According to the professor, why does a pine tree produce a "smooth" echo?A. Because it has a smooth trunkB. Because it has large branches spaced at regular intervalsC. Because it has many small, densely packed needlesD. Because it remains staionary in all types of weather - 7. Multiple ChoiceBiology Question 6
Listen to track 4A. to answer a question that Carol askedB. To correct a statement that Carol madeC. To praise Carol for an example that she gaveD. To give an example of principle that Carol stated - 8. Multiple ChoiceHistory Question 1
What is the lecture mainly about?A. Political events that led to the invention of eyeglassesB. A comparison of attitude toward vision correction in Europe and ChinaC. The relationship between the printing press and literacyD. An overview of vision correction over time - 9. Multiple ChoiceHistory Question 2
According to the professor, what was an advantage of using clear glass instead of quartz to make reading stones?A. Clear glass was easier to find than quartzB. Clear glass was easier to cut to the appropriate sizeC. Clear glass magnified the letters more than quartz didD. Clear glass was less expensive than quartz - 10. Multiple ChoiceHistory Question 3.
What does the professor imply about the invention of eyeglasses?A. Its historical records are more detailed than those of other inventionsB. It had little impact on social attitudes toward vision correctionC. Its occurrence in different places at approximately the same time is not unusualD. It contributed to a substantial increase in the number of literate people - 11. Multiple ChoiceHistory Question 4
Which sentence best describes eyeglasses before the invention of the printing press?A. They were available to everyoneB. They were a symbol of wealth and wisdomC. They could not correct vision accuratelyD. They could be bought only from traveling peddlers - 12. Multiple ChoiceHistory Question 5(1)
Put the events in the order that they happenedA. Inexpensive eyeglasses became availableB. The first eyeglasses were madeC. The number of people interested in reading increasedD. The printing press was invented - 13. Multiple ChoiceHistory Question 5(2)
Put the events in the order that they happenedA. Inexpensive eyeglasses became availableB. The first eyeglasses were madeC. The number of people interested in reading increasedD. The printing press was invented - 14. Multiple ChoiceHistory Question 5(3)
Put the events in the order that they happenedA. Inexpensive eyeglasses became availableB. The first eyeglasses were madeC. The number of people interested in reading increasedD. The printing press was invented - 15. Multiple ChoiceHistory Question 5(4)
Put the events in the order that they happenedA. Inexpensive eyeglasses became availableB. The first eyeglasses were madeC. The number of people interested in reading increasedD. The printing press was invented - 16. Multiple ChoiceHistory Question 6
Listen to Track 6A. She is impressed by the solutionB. The solution she describes is obviousC. The solution was not a common practiceD. The solution was not particularly expensive - Answer choicesTagsAnswer choicesTags