Although Tom agreed with her on most points, here was one _____ which he was unwilling to give in.

A．on

B．in

C．to

D．with

While driving Oil the expressway, did Robin ever exceed the 55-miles-per-hour speed limit ？（）

(1)Robin drove 100 miles on the expressway.

(2)Robin drove for 2 hours on the expressway.

A.条件（1）充分，但条件（2）不充分.

B.条件（2）充分，但条件（1）不充分.

C.条件（1）和（2）单独都不充分，但条件（1）和条件（2）联合起来充分.

D.条件（1）充分，条件（2）也充分.

E.条件（1）和条件（2）单独都不充分，条件（1）和条件（2）联合起来也不充分.