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单选题 How many subspecies of tigers have become extinct since the 1930s
学科：大学英语-2
时间：2023-06-10 16:16:57
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题目1单选题
What can we learn about ivory trade from the news itemA. France is the biggest buyer of ivoryB. People think the 1989 ban invalidC. Cross-border smuggling of ivory still continuesD. It is hard to estimate how many elephants are killed
题目2单选题
According to the experts, how to curb illegal ivory trade effectivelyA. Reduce the demand and destroy the existing stockpilesB. Destroy the existing stockpiles and make the ivory more expensiveC. Protest against the practice and call for a banD. Set up conservation zones
题目3单选题
What has China done to reduce ivory tradeA. It has effectively controlled the price of ivoryB. It has cracked down on smugglers and joined in destroying illegal ivory stockpilesC. It has attended the summit aimed at curbing illegal wildlife tradeD. It has completely banned ivory trade
题目4单选题
How many Siberian tigers are left in the wildA. About 400B. About 500C. About 600D. About 700
题目5单选题
How many subspecies of tigers have become extinct since the 1930sA. 2B. 3C. 4D. 5
题目6单选题
What is the greatest threat to the survival of tigersA. The demand for their furB. Habitat lossC. The demand for traditional medicine containing tiger boneD. The loss of their prey
题目7单选题
Which of the following is the most probable title for the passageA. Dogs Are Friends of HumansB. How to Find Bladder Cancer (膀胱癌)C. Dogs Can Cure Bladder CancerD. Dogs Can Smell Cancer
题目8单选题
Why are dogs believed to be able to find cancerA. Because dogs have a keen sense of smellB. Because dogs have a keen sense of hearingC. Because dogs have a keen sense of sightD. Because dogs have a keen sense of intuition
题目9单选题
Which of the following is true about the findings of the researchA. Dogs showed strong interest in bladder cancer patientsB. Dogs had a high chance to identify urine collected from bladder cancer patientsC. Dogs were not able to identify urine collected from bladder cancer patientsD. Dogs had a higher chance to identify urine collected from bladder cancer patients than cats
题目10单选题
What could dogs help scientists do with cancerA. Dogs could help scientists identify cancer patientsB. Dogs could help scientists identify all kinds of diseasesC. Dogs could help scientists identify reasons for cancerD. Dogs could help scientists identify markers for cancer
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