He is widely ______ as one of our best young scientists.

单项选择题The author's tone in this passage is （）

A．sympathetic
B．doubtful
C．critical
D．objective

单项选择题What are the major factors that determine the success of Asian Americans（）

A．A solid foundation in basic mathematics and Asian culture.
B．Hard work and intelligence.
C．Parents' help and a limited knowledge of English.
D．Asian culture and the American educational system.