可以打开蛋白质分子中二硫键的方法是( )

Which of the following is not mentioned in the passage？

A．Some couples marry according to their parents' arrangement.

B．Some men seek their future-wife by advertising in the newspaper.

C．The Americans will not live together before their marriage.

D．Friends and parents usually play an important role in arranging marriage.

According to this passage，working-class parents are more likely than middle-class parents to ．

According to the passage, which of the statements is true？

A．Our children don't need to be responsible for their behavior.

B．We fail to teach the generation what responsibility and obligation is.

C．No parents expect their children learn personal responsibility.

D．The generation now entering the college has established close connections with adults.

According to the passage, which of the statements is true？

A．Our children don't need to be responsible for their behavior.

B．We fail to teach the generation what responsibility and obligation is.

C．No parents expect their children learn personal responsibility.

D．The generation now entering the college has established close connections with adults.

According to the passage, what is the best for both parents and children？

A．They should adjust themselves to sharing the family expenses.

B．Children should leave their parents when they are grown up.

C．Adult children should visit their parents from time to time.

D．Parents should support their children when they are in trouble.

According to the passage, which of the following is TRUE？

A．Sean Martinovich couldn't nm around with the other boys in the playground now.

B．Hopefully, Sean Martiuovich can smile over the next three months.

C．Sean's parents, Steve and Wendy Martinovich, don't believe the technology will restore the cheeky smile.

D．For Doctor Bartlett the microsurgery is just a minor and easy case.

The last sentence of this passage is based on the idea that ______.

A．it is wise to surf online

B．discounting isn't everything

C．e-ticketing attracts more partners

D．time is money

Among the following which one is not the negative consequence according to the passage？

A．The kids are emotionally fragile and they can't stand on their own.

B．They don't know how to make sound decisions.

C．They aren't equipped to deal with failure and frustration.

D．They are lucky to have their parents aroun

According to the passage parents have become increasingly interested in______.

A．their children's future jobs

B．having smaller families

C．adoption for childless couples

D．child-rearing

According to the passage, what is the best for both parents and children？

A．They should adjust themselves to sharing the family expenses.

B．Children should leave their parents when they are grown up.

C．Adult children should visit their parents from time to time.

D．Parents should support their adult children when they are in trouble.