A.in the late 19th century in the United States the dividing line between adolescence and adulthood no longer existed
B.no one can marry without the permission of his parents until the age of twenty-one
C.one is considered to have reached adulthood when he has a driver’s license
D.one is not free from the restrictions of child labor laws until he can join the army
A.one will obtain more basic rights
B.the older one becomes, the more basic rights he will have
C.one won’t get more basic rights than when he is 21
D.one will enjoy more rights granted by society
开始考试点击查看答案A.eleven years old
B.sixteen years old
C.twenty-one years old
D.between twelve and twenty-one years old
开始考试点击查看答案A.graduations from schools and colleges
B.social recognition
C.socio-economic status
D.certain behavioral changes
开始考试点击查看答案A.the definition of maturity has changed
B.the industrialized society is more developed
C.more education is provided and laws against child labor are made
D.ceremonies for adolescence have lost their formal recognition and symbolic significance
开始考试点击查看答案A.stricter discipline should be maintained in schools and families
B.more good examples should be set for people to follow
C.more restrictions should be imposed on people’s behavior
D.more people should accept the value of accountability
开始考试点击查看答案A.forming sugars
B.sustaining woody stems
C.keeping green
D.producing carbon dioxide
开始考试点击查看答案A.to form sugars
B.to derive energy from light
C.to preserve water
D.to combine carbon dioxide with water
开始考试点击查看答案A.a plant efficiently utilizes most of the water it absorbs
B.carbon dioxide is the essential substance needed for plant development
C.a plant needs more water than is found in its composition
D.the stronger the wind, the more the water vapor loss
开始考试点击查看答案A.The mineral elements will not be absorbed by the plant unless they are dissolved in its root.
B.The woody stems contain more water than the leaves.
C.Air existing around the leaf is found to be saturate
D.D.Only part of the carbon dioxide in the plants is synthesized.
开始考试点击查看答案A.the functions of carbon dioxide and water
B.the role of water in a growing plant
C.the process of simple sugar formation
D.the synthesis of water with carbon dioxide
开始考试点击查看答案企事业内部考试类其他其他积分换房
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