机舱进水后进行排水时应考虑管系的排水率,一般是()。
A.管径大排水能力大
B.管径大排水能力小
C.管系排水能力大小只取决于泵的排量大小
D.管径大小与排水能力无关
参考答案:A
单词拼写(注意用正确形式填空)(每空1分,共10分)
小题1:Her music is very popular with ______(青少年).
小题2:We _______(逐渐)get used to getting up early in the morning and going to bed late at night.
小题3:Can you tell me the _________(用法)of the word “command”?
小题4:Tom told me that he couldn’t speak Chinese _______(流利).
小题5:The little boy is just starting to talk. He has a _______(词汇量) of about ten words.
小题6:We ______(遭受)from a terrible drought last summer.
小题7:Thunder often accompanies ________(闪电)
小题8:__________(基于)on facts, his article is popular with the readers.
小题9:She can speak _________(西班牙语) very fluently.
小题10:He said he won the prize but _________(实际上)he was lying.
B328中BCCS板的主要功能是();(),以太网交换。