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【單選題】
有關(guān)DNA和RNA的敘述，正確的是（ ）
A.
遺傳信息只存在DNA分子中
B.
組成二者的堿基不完全相同
C.
在細(xì)胞中，DNA存在于細(xì)胞核中，RNA存在于細(xì)胞質(zhì)中
D.
所有生物的DNA都具有相同的脫氧核苷酸排列順序
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舉報(bào)參考答案：
舉一反三
【單選題】From the last paragraph, we can infer that __________.
A.
the situations in the developed and developing countries are different
B.
"Empty Nest Syndrome" has arrived unexpectedly in our society
C.
children will become independent as soon as they go abroad
D.
the aged parents are not fully prepared for "Empty Nest Syndrome"
【單選題】If young people go abroad, __________.
A.
they do not hold to the value of duty at all
B.
they can give some help to their parents back home
C.
they cannot do what they should for their parents
D.
they believe what they actually do is right
【單選題】Many young people have gone abroad, leaving their aged parents behind, to __________.
A.
realize their dreams in foreign countries
B.
seek a better place for their aged parents
C.
live in the countries with more money
D.
continue their studies abroad
【單選題】According to the passage, the loneliness of aged parents is mainly caused by __________.
A.
their earlier experience of living alone
B.
the poor living conditions in their native countries
C.
the common worry that they have not saved much money
D.
the distance between where parents live and where their children live
【單選題】The sentence “Your answers are welcome” means “_________”.
A.
You are welcome to discuss the questions with us
B.
We’ve got no idea, so your answers are welcome
C.
Your answers are always right
D.
You can give us all the right answers
相關(guān)題目：
【單選題】From the last paragraph, we can infer that __________.
A.
the situations in the developed and developing countries are different
B.
"Empty Nest Syndrome" has arrived unexpectedly in our society
C.
children will become independent as soon as they go abroad
D.
the aged parents are not fully prepared for "Empty Nest Syndrome"
【單選題】If young people go abroad, __________.
A.
they do not hold to the value of duty at all
B.
they can give some help to their parents back home
C.
they cannot do what they should for their parents
D.
they believe what they actually do is right
【單選題】Many young people have gone abroad, leaving their aged parents behind, to __________.
A.
realize their dreams in foreign countries
B.
seek a better place for their aged parents
C.
live in the countries with more money
D.
continue their studies abroad
【單選題】According to the passage, the loneliness of aged parents is mainly caused by __________.
A.
their earlier experience of living alone
B.
the poor living conditions in their native countries
C.
the common worry that they have not saved much money
D.
the distance between where parents live and where their children live
【單選題】The sentence “Your answers are welcome” means “_________”.
A.
You are welcome to discuss the questions with us
B.
We’ve got no idea, so your answers are welcome
C.
Your answers are always right
D.
You can give us all the right answers
參考解析：
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