第一恒磨牙有釉质发育不全，说明受累年龄在出生后()

A．五年内

B．三年内

C．二年后

D．二年内

E．一年内

The Foreign Minister said, "_______ our hope that the two sides will work towards peace." [ ]

A. This is

B. There is

C. That is

D. It is