()微米的水中细菌聚合体是白鲢的适口饵料。
A.5
B.6~20
C.21~60
D.大于60
参考答案:C
根据句意及汉语提示写出各单词的适当形式,每空填一词。
1. I can cook for ______ ( 我)
2. My mother makes me healthy and ______ ( 好吃的 ) meals.
3. He is very ______ ( 亲密) to his uncle.
4. The work is so ______(令人乏味的). I don’t like it.
5. They are great ______ ( 英雄). I admire them very much.
重起动的应急起动指令,重复起动信号,倒车起动指令,三者的逻辑关系是()。
A.与
B.或
C.非
D.或非