消费者、协作者、竞争者、记者、名流、政府官员、社区居民等属于组织的( )
A.个体公众
B.组织公众
C.内部公众
D.外部公众
参考答案:D
— I hear that Tony was seriously injured in an accident the other day.
— Yes, _____ news came as _____ shock (震惊) to all of us. [ ]
A. the; the
B. a; 不填
C. the; a
D. 不填; a
保存菌种的最好方法是()
A.置牛奶中
B.制成明胶片
C.置卵黄培养基中
D.置半固体培养基中
E.冷冻真空干燥法