单项选择题

Why is it forgivable for people to hope that they will live longer in the future than now

A．Because people want to live as long as possible,
B．Because life expectancy has doubled since the mid-19th century.
C．Because many people live past 100 and the oldest individuals have reached more than 100.
D．Because great progress is made in medicine and health sciences during the past 150 years.

<上一题目录下一题>

热门试题

单项选择题A．evolvedB．developedC．tamedD．grew

A．evolved
B．developed
C．tamed
D．grew

单项选择题What is the topic of the man’s research paper

A．Egypt today.
B．Egyptian ancient history.
C．Egypt in 900-999.
D．Travel in Egypt.

单项选择题Whom is the talk addressed to

A．Freshmen in the university.
B．Teachers of different backgrounds.
C．Students and teachers from computer college.
D．Regular MA students and in-service teachers.

单项选择题How many email messages did Americans send in 1999

A．2.2 billion.
B．2.2 million
C．293 million.
D．293 billion.

单项选择题What are often used in emails and instant messages

A．New words.
B．Pictures.
C．Short forms.
D．Capital letters.