报告期末每周班次为7班,计划期夏秋航班增加2班,冬春航班减少1班,则计划期全年飞行班次为()班
A.864
B.866
C.868
D.870
参考答案:B
The other day he ______ a dollar bill in the suit he was sending to the cleaner’s.
A.came to
B.came across
C.came into
D.came through
抑制病毒的三磷酸鸟苷合成,抑制病毒mRNA合成的是()
A.两性霉素B
B.氟胞嘧啶
C.灰黄霉素
D.利巴韦林
E.齐多夫定