The wild mammals _______.
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1 .Genetic engineering, according to advocates, _________.
A require fewer toxic pesticides B can induce plants to grow in poor soils C can be kinder to the environment and that eating GM foods is safe D might have potential risks because there exists a lot unknown E have potential risks to the environment and health F have more risks than benefits
2 .Critics argue that GM crops __________.
A require fewer toxic pesticides B can induce plants to grow in poor soils C can be kinder to the environment and that eating GM foods is safe D might have potential risks because there exists a lot unknown E have potential risks to the environment and health F have more risks than benefits
3 .Advocates say GM crops benefit the environment because they _______.
A require fewer toxic pesticides B can induce plants to grow in poor soils C can be kinder to the environment and that eating GM foods is safe D might have potential risks because there exists a lot unknown E have potential risks to the environment and health F have more risks than benefits
4 .Guenther Stotzky agrees that GM plants __________.
A require fewer toxic pesticides B can induce plants to grow in poor soils C can be kinder to the environment and that eating GM foods is safe D might have potential risks because there exists a lot unknown E have potential risks to the environment and health F have more risks than benefits
5 .Most mammals_______.
A feel comfortable in summer without fu B prevent sunburn by using mud C have fur to keep their bodies warm and dry D have body fat to keep them war.
7 .How many kinds of hairless mammals are mentioned in the passage?
A 4 B 5 C 6 D 7
8 .The furs are unnecessary for whales because_______.
A whales can’t be sunburned B whales have body fat to keep warm C whales use mud and dust to keep warm D whales can’t be affected by weather easily.
9 .Which of the followings is NOT true according to the passage?
A Furs help mammals to keep warm B An adult human’s body has the same number of hairs as an adult gorilla has. C Hairs can help some mammals attract attention from the opposite sex. D Furs are also necessary for mammals that living in hot places.
10 .Rainfall in most of the Sahara is_______.
A less than five inches per year B less than ten inches per year C less than twenty inches per year D zero
