题目内容

大于80%N2工作时最低滑油压力是多少?

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HW19710不带取力器变速箱的加油量为()

A. 10L
B. 11L
C. 12L
D. 13L

23.int z=5; 24. 25. public void stuff1(int x) { 26. assert (x> 0); 27. switch(x) { 28. case 2: x= 3; 29. default: assert false; } } 30. 31. private void stuff2(int y) { assert (y < 0); } 32. 33. private void stuff3() { assert (stuff4O); } 34. 35. private boolean stuff4() { z = 6; return false; } Which is true?()

All of the assert statements are used appropriately.
B. Only the assert statement on line 31 is used appropriately.
C. The assert statements on lines 29 and 31 are used appropriately.
D. The assert statements on lines 26 and 29 are used appropriately.
E. The assert statements on lines 29 and 33 are used appropriately.
F. The assert statements on lines 29, 31, and 33 are used appropriately.
G. The assert statements on lines 26, 29, and 31 are used appropriately.

关于电话通信的描述正确的是()。

A. 电话通信的任务是利用电能把人类语言从甲地传送到乙地。
B. 电话通信是利用电能传送人类语言信息的一种通信方式,
C. 电话通信是利用光能传送人类语言信息的一种通信方式
D. 这种借助电能把语言信传送到远方的通信方式,可以起到有效的缩短时间和空间的作用
E. 以上都不对

泵站直流操作电源常用有()()两种

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