犬口腔 * * 状瘤病是由 * * 状瘤病毒引起的,该病的潜伏期是()
A.5~7d
B.10~15d
C.2~3周
D.4~6周
E.9~12周
参考答案:D
影响生物生活的生态因素可以分为两大类,一类是 因素,另一类是 因素。
Many CD companies had intended to get much from the business, but it________so bad. [ ]
A. made out
B. turned out
C. went out
D. carried out