—They say your brother is very tall. Is that true?

—Yes. He is ____ than anyone in the class. In fact he is ____ in our school.

A．tall; the tallest

B．tall; taller

C．taller; tallest

D．taller; the tallest

理论上，集装箱班轮运输下签发的提单通常是( )

A．预借提单

B．收货待运提单

C．已装船提单

D．倒签提单