巨细胞病毒是先天性病毒感染中最主要的病原之一，在致畸方面的危害比风疹更加严重。
参考答案：对
The result of the entrance exams was not made ______ to the public until last Thursday. [ ]
A. knowing
B. to know
C. known
D. to be known
We look forward to ______ the goods in the fourth quarter.
A．the delivery of
B．your delivery
C．deliver
D．delivery
