在换热器单元当泵P101A出口压力达到()时,全靠P101A后手阀VB03
A.10.0atm
B.9.0atm
C11.0atm
D.8.0atm
参考答案:B
用括号中所给单词的适当形式完成下列句子。
1. Many historical ______ will-be shown on National Day. (movie)
2. With the help of Yellow Pages, we found the address of the theatre ______. (easy)
3. Eric, the ______ son of the family, has a special interest in physics. (three)
4. It's ______ for him to be so active today as he is always a man of few words. (usual)
5. Who is the ______ of the book War and Peace? (write)
6. The short play was very ______ . I laughed from beginning to end. (fun)
7. It's raining heavily. I'd ______ you call a taxi home now. (suggestion)
8. I think the girl is old enough to tie up her shoes by______. ( her)
齿轮泵在使用之前(特别是长期停用的泵)要向泵内灌一些所要输送的油料,以便()。
A、排出气体
B、熔化凝油
C、齿轮得到润滑并密封间隙
D、暖泵